Finding the Fourth Proportional to 1,200.55, 1,658.82 and 954.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.55 : 1,658.82 = 954.04 : x
2. Step 2: Convert to fraction form
   1,200.55/1,658.82 = 954.04/x
3. Step 3: Cross multiply
   1,200.55x = 1,658.82 × 954.04
4. Step 4: Simplify right side
   1,200.55x = 1,582,572.34
5. Step 5: Solve for x
   x = 1,582,572.34/1,200.55
6. Step 6: Final answer
   x = 1,318.21