Finding the Fourth Proportional to 2,196.60, 3,288.72 and 2,024.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.60 : 3,288.72 = 2,024.40 : x
2. Step 2: Convert to fraction form
   2,196.60/3,288.72 = 2,024.40/x
3. Step 3: Cross multiply
   2,196.60x = 3,288.72 × 2,024.40
4. Step 4: Simplify right side
   2,196.60x = 6,657,684.77
5. Step 5: Solve for x
   x = 6,657,684.77/2,196.60
6. Step 6: Final answer
   x = 3,030.90