Finding the Fourth Proportional to 1,557.15, 2,331.06 and 1,501.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557.15 : 2,331.06 = 1,501.76 : x
2. Step 2: Convert to fraction form
   1,557.15/2,331.06 = 1,501.76/x
3. Step 3: Cross multiply
   1,557.15x = 2,331.06 × 1,501.76
4. Step 4: Simplify right side
   1,557.15x = 3,500,692.86
5. Step 5: Solve for x
   x = 3,500,692.86/1,557.15
6. Step 6: Final answer
   x = 2,248.15