Finding the Fourth Proportional to 1,858.88, 2,565.72 and 1,073.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.88 : 2,565.72 = 1,073.42 : x
2. Step 2: Convert to fraction form
   1,858.88/2,565.72 = 1,073.42/x
3. Step 3: Cross multiply
   1,858.88x = 2,565.72 × 1,073.42
4. Step 4: Simplify right side
   1,858.88x = 2,754,095.16
5. Step 5: Solve for x
   x = 2,754,095.16/1,858.88
6. Step 6: Final answer
   x = 1,481.59