Finding the Fourth Proportional to 1,858.18, 2,564.94 and 1,150.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.18 : 2,564.94 = 1,150.57 : x
2. Step 2: Convert to fraction form
   1,858.18/2,564.94 = 1,150.57/x
3. Step 3: Cross multiply
   1,858.18x = 2,564.94 × 1,150.57
4. Step 4: Simplify right side
   1,858.18x = 2,951,143.02
5. Step 5: Solve for x
   x = 2,951,143.02/1,858.18
6. Step 6: Final answer
   x = 1,588.19