Finding the Fourth Proportional to 1,153.72, 1,592.03 and 656.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.72 : 1,592.03 = 656.45 : x
2. Step 2: Convert to fraction form
   1,153.72/1,592.03 = 656.45/x
3. Step 3: Cross multiply
   1,153.72x = 1,592.03 × 656.45
4. Step 4: Simplify right side
   1,153.72x = 1,045,081.77
5. Step 5: Solve for x
   x = 1,045,081.77/1,153.72
6. Step 6: Final answer
   x = 905.84