Finding the Fourth Proportional to 1,866.05, 2,575.82 and 1,158.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.05 : 2,575.82 = 1,158.02 : x
2. Step 2: Convert to fraction form
   1,866.05/2,575.82 = 1,158.02/x
3. Step 3: Cross multiply
   1,866.05x = 2,575.82 × 1,158.02
4. Step 4: Simplify right side
   1,866.05x = 2,982,832.41
5. Step 5: Solve for x
   x = 2,982,832.41/1,866.05
6. Step 6: Final answer
   x = 1,598.48