Finding the Fourth Proportional to 1,053.83, 1,454.31 and 581.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.83 : 1,454.31 = 581.74 : x
2. Step 2: Convert to fraction form
   1,053.83/1,454.31 = 581.74/x
3. Step 3: Cross multiply
   1,053.83x = 1,454.31 × 581.74
4. Step 4: Simplify right side
   1,053.83x = 846,026.66
5. Step 5: Solve for x
   x = 846,026.66/1,053.83
6. Step 6: Final answer
   x = 802.81