Finding the Fourth Proportional to 1,434.93, 1,979.59 and 875.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.93 : 1,979.59 = 875.12 : x
2. Step 2: Convert to fraction form
   1,434.93/1,979.59 = 875.12/x
3. Step 3: Cross multiply
   1,434.93x = 1,979.59 × 875.12
4. Step 4: Simplify right side
   1,434.93x = 1,732,379.49
5. Step 5: Solve for x
   x = 1,732,379.49/1,434.93
6. Step 6: Final answer
   x = 1,207.29