Finding the Fourth Proportional to 1,123.52, 1,688.02 and 1,061.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.52 : 1,688.02 = 1,061.35 : x
2. Step 2: Convert to fraction form
   1,123.52/1,688.02 = 1,061.35/x
3. Step 3: Cross multiply
   1,123.52x = 1,688.02 × 1,061.35
4. Step 4: Simplify right side
   1,123.52x = 1,791,580.03
5. Step 5: Solve for x
   x = 1,791,580.03/1,123.52
6. Step 6: Final answer
   x = 1,594.61