Finding the Fourth Proportional to 1,854.04, 2,558.46 and 1,057.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.04 : 2,558.46 = 1,057.34 : x
2. Step 2: Convert to fraction form
   1,854.04/2,558.46 = 1,057.34/x
3. Step 3: Cross multiply
   1,854.04x = 2,558.46 × 1,057.34
4. Step 4: Simplify right side
   1,854.04x = 2,705,162.10
5. Step 5: Solve for x
   x = 2,705,162.10/1,854.04
6. Step 6: Final answer
   x = 1,459.06