Finding the Fourth Proportional to 6,663.72, 9,994.56 and 2,280.17

Step by Step Solution

1. Step 1: Write the proportion equation
   6,663.72 : 9,994.56 = 2,280.17 : x
2. Step 2: Convert to fraction form
   6,663.72/9,994.56 = 2,280.17/x
3. Step 3: Cross multiply
   6,663.72x = 9,994.56 × 2,280.17
4. Step 4: Simplify right side
   6,663.72x = 22,789,312.31
5. Step 5: Solve for x
   x = 22,789,312.31/6,663.72
6. Step 6: Final answer
   x = 3,419.91