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Finding the Fourth Proportional to 708, 978.96 and 598.80

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Solution

The fourth proportional to 708, 978.96 and 598.80 is: 827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    708 : 978.96 = 598.80 : x
  2. Step 2: Convert to fraction form
    708/978.96 = 598.80/x
  3. Step 3: Cross multiply
    708x = 978.96 × 598.80
  4. Step 4: Simplify right side
    708x = 586,201.25
  5. Step 5: Solve for x
    x = 586,201.25/708
  6. Step 6: Final answer
    x = 827.97

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