Finding the Fourth Proportional to 2,441.18, 3,666.72 and 2,155.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,441.18 : 3,666.72 = 2,155.16 : x
2. Step 2: Convert to fraction form
   2,441.18/3,666.72 = 2,155.16/x
3. Step 3: Cross multiply
   2,441.18x = 3,666.72 × 2,155.16
4. Step 4: Simplify right side
   2,441.18x = 7,902,385.52
5. Step 5: Solve for x
   x = 7,902,385.52/2,441.18
6. Step 6: Final answer
   x = 3,237.12