Finding the Fourth Proportional to 1,488.29, 2,053.89 and 1,114.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.29 : 2,053.89 = 1,114.61 : x
2. Step 2: Convert to fraction form
   1,488.29/2,053.89 = 1,114.61/x
3. Step 3: Cross multiply
   1,488.29x = 2,053.89 × 1,114.61
4. Step 4: Simplify right side
   1,488.29x = 2,289,276.06
5. Step 5: Solve for x
   x = 2,289,276.06/1,488.29
6. Step 6: Final answer
   x = 1,538.20