Finding the Fourth Proportional to 1,665.10, 2,494.74 and 932.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.10 : 2,494.74 = 932.86 : x
2. Step 2: Convert to fraction form
   1,665.10/2,494.74 = 932.86/x
3. Step 3: Cross multiply
   1,665.10x = 2,494.74 × 932.86
4. Step 4: Simplify right side
   1,665.10x = 2,327,243.16
5. Step 5: Solve for x
   x = 2,327,243.16/1,665.10
6. Step 6: Final answer
   x = 1,397.66