Finding the Fourth Proportional to 2,402.24, 3,602.52 and 921.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.24 : 3,602.52 = 921.86 : x
2. Step 2: Convert to fraction form
   2,402.24/3,602.52 = 921.86/x
3. Step 3: Cross multiply
   2,402.24x = 3,602.52 × 921.86
4. Step 4: Simplify right side
   2,402.24x = 3,321,019.09
5. Step 5: Solve for x
   x = 3,321,019.09/2,402.24
6. Step 6: Final answer
   x = 1,382.47