Finding the Fourth Proportional to 1,854.37, 2,558.98 and 1,145.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.37 : 2,558.98 = 1,145.93 : x
2. Step 2: Convert to fraction form
   1,854.37/2,558.98 = 1,145.93/x
3. Step 3: Cross multiply
   1,854.37x = 2,558.98 × 1,145.93
4. Step 4: Simplify right side
   1,854.37x = 2,932,411.95
5. Step 5: Solve for x
   x = 2,932,411.95/1,854.37
6. Step 6: Final answer
   x = 1,581.35