Finding the Fourth Proportional to 2,085.64, 3,125.94 and 932.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.64 : 3,125.94 = 932.20 : x
2. Step 2: Convert to fraction form
   2,085.64/3,125.94 = 932.20/x
3. Step 3: Cross multiply
   2,085.64x = 3,125.94 × 932.20
4. Step 4: Simplify right side
   2,085.64x = 2,914,001.27
5. Step 5: Solve for x
   x = 2,914,001.27/2,085.64
6. Step 6: Final answer
   x = 1,397.17