Finding the Fourth Proportional to 5,267.52, 7,899.14 and 1,978.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,267.52 : 7,899.14 = 1,978.82 : x
2. Step 2: Convert to fraction form
   5,267.52/7,899.14 = 1,978.82/x
3. Step 3: Cross multiply
   5,267.52x = 7,899.14 × 1,978.82
4. Step 4: Simplify right side
   5,267.52x = 15,630,926.83
5. Step 5: Solve for x
   x = 15,630,926.83/5,267.52
6. Step 6: Final answer
   x = 2,967.42