Finding the Fourth Proportional to 1,053.59, 1,454.04 and 581.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.59 : 1,454.04 = 581.53 : x
2. Step 2: Convert to fraction form
   1,053.59/1,454.04 = 581.53/x
3. Step 3: Cross multiply
   1,053.59x = 1,454.04 × 581.53
4. Step 4: Simplify right side
   1,053.59x = 845,568.61
5. Step 5: Solve for x
   x = 845,568.61/1,053.59
6. Step 6: Final answer
   x = 802.56