Finding the Fourth Proportional to 1,591.92, 2,377.31 and 1,574.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.92 : 2,377.31 = 1,574.78 : x
2. Step 2: Convert to fraction form
   1,591.92/2,377.31 = 1,574.78/x
3. Step 3: Cross multiply
   1,591.92x = 2,377.31 × 1,574.78
4. Step 4: Simplify right side
   1,591.92x = 3,743,720.48
5. Step 5: Solve for x
   x = 3,743,720.48/1,591.92
6. Step 6: Final answer
   x = 2,351.70