Finding the Fourth Proportional to 2,176.32, 3,264.89 and 715.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.32 : 3,264.89 = 715.53 : x
2. Step 2: Convert to fraction form
   2,176.32/3,264.89 = 715.53/x
3. Step 3: Cross multiply
   2,176.32x = 3,264.89 × 715.53
4. Step 4: Simplify right side
   2,176.32x = 2,336,123.16
5. Step 5: Solve for x
   x = 2,336,123.16/2,176.32
6. Step 6: Final answer
   x = 1,073.43