Finding the Fourth Proportional to 2,371.58, 3,557.88 and 910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.58 : 3,557.88 = 910.72 : x
2. Step 2: Convert to fraction form
   2,371.58/3,557.88 = 910.72/x
3. Step 3: Cross multiply
   2,371.58x = 3,557.88 × 910.72
4. Step 4: Simplify right side
   2,371.58x = 3,240,232.47
5. Step 5: Solve for x
   x = 3,240,232.47/2,371.58
6. Step 6: Final answer
   x = 1,366.28