Finding the Fourth Proportional to 2,156.34, 3,232.14 and 924.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.34 : 3,232.14 = 924.78 : x
2. Step 2: Convert to fraction form
   2,156.34/3,232.14 = 924.78/x
3. Step 3: Cross multiply
   2,156.34x = 3,232.14 × 924.78
4. Step 4: Simplify right side
   2,156.34x = 2,989,018.43
5. Step 5: Solve for x
   x = 2,989,018.43/2,156.34
6. Step 6: Final answer
   x = 1,386.15