Finding the Fourth Proportional to 1,843.60, 2,543.82 and 1,057.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,843.60 : 2,543.82 = 1,057.48 : x
2. Step 2: Convert to fraction form
   1,843.60/2,543.82 = 1,057.48/x
3. Step 3: Cross multiply
   1,843.60x = 2,543.82 × 1,057.48
4. Step 4: Simplify right side
   1,843.60x = 2,690,038.77
5. Step 5: Solve for x
   x = 2,690,038.77/1,843.60
6. Step 6: Final answer
   x = 1,459.12