Finding the Fourth Proportional to 1,591.12, 2,385.72 and 1,076.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.12 : 2,385.72 = 1,076.56 : x
2. Step 2: Convert to fraction form
   1,591.12/2,385.72 = 1,076.56/x
3. Step 3: Cross multiply
   1,591.12x = 2,385.72 × 1,076.56
4. Step 4: Simplify right side
   1,591.12x = 2,568,370.72
5. Step 5: Solve for x
   x = 2,568,370.72/1,591.12
6. Step 6: Final answer
   x = 1,614.19