Finding the Fourth Proportional to 1,867.38, 2,575.83 and 1,159.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,867.38 : 2,575.83 = 1,159.56 : x
2. Step 2: Convert to fraction form
   1,867.38/2,575.83 = 1,159.56/x
3. Step 3: Cross multiply
   1,867.38x = 2,575.83 × 1,159.56
4. Step 4: Simplify right side
   1,867.38x = 2,986,829.43
5. Step 5: Solve for x
   x = 2,986,829.43/1,867.38
6. Step 6: Final answer
   x = 1,599.48