Finding the Fourth Proportional to 2,218.08, 3,061.20 and 1,432.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.08 : 3,061.20 = 1,432.56 : x
2. Step 2: Convert to fraction form
   2,218.08/3,061.20 = 1,432.56/x
3. Step 3: Cross multiply
   2,218.08x = 3,061.20 × 1,432.56
4. Step 4: Simplify right side
   2,218.08x = 4,385,352.67
5. Step 5: Solve for x
   x = 4,385,352.67/2,218.08
6. Step 6: Final answer
   x = 1,977.09