Finding the Fourth Proportional to 1,151.32, 1,725.18 and 630.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.32 : 1,725.18 = 630.88 : x
2. Step 2: Convert to fraction form
   1,151.32/1,725.18 = 630.88/x
3. Step 3: Cross multiply
   1,151.32x = 1,725.18 × 630.88
4. Step 4: Simplify right side
   1,151.32x = 1,088,381.56
5. Step 5: Solve for x
   x = 1,088,381.56/1,151.32
6. Step 6: Final answer
   x = 945.33