Finding the Fourth Proportional to 2,123.92, 3,187.76 and 1,137.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.92 : 3,187.76 = 1,137.52 : x
2. Step 2: Convert to fraction form
   2,123.92/3,187.76 = 1,137.52/x
3. Step 3: Cross multiply
   2,123.92x = 3,187.76 × 1,137.52
4. Step 4: Simplify right side
   2,123.92x = 3,626,140.76
5. Step 5: Solve for x
   x = 3,626,140.76/2,123.92
6. Step 6: Final answer
   x = 1,707.29