Finding the Fourth Proportional to 1,711.57, 2,363.12 and 1,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,711.57 : 2,363.12 = 1,123.10 : x
2. Step 2: Convert to fraction form
   1,711.57/2,363.12 = 1,123.10/x
3. Step 3: Cross multiply
   1,711.57x = 2,363.12 × 1,123.10
4. Step 4: Simplify right side
   1,711.57x = 2,654,024.58
5. Step 5: Solve for x
   x = 2,654,024.58/1,711.57
6. Step 6: Final answer
   x = 1,550.64