Finding the Fourth Proportional to 1,488.06, 2,053.49 and 824.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.06 : 2,053.49 = 824.91 : x
2. Step 2: Convert to fraction form
   1,488.06/2,053.49 = 824.91/x
3. Step 3: Cross multiply
   1,488.06x = 2,053.49 × 824.91
4. Step 4: Simplify right side
   1,488.06x = 1,693,934.17
5. Step 5: Solve for x
   x = 1,693,934.17/1,488.06
6. Step 6: Final answer
   x = 1,138.35