Finding the Fourth Proportional to 1,521.85, 2,100.18 and 932.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.85 : 2,100.18 = 932.71 : x
2. Step 2: Convert to fraction form
   1,521.85/2,100.18 = 932.71/x
3. Step 3: Cross multiply
   1,521.85x = 2,100.18 × 932.71
4. Step 4: Simplify right side
   1,521.85x = 1,958,858.89
5. Step 5: Solve for x
   x = 1,958,858.89/1,521.85
6. Step 6: Final answer
   x = 1,287.16