Finding the Fourth Proportional to 3,663.83, 5,056.11 and 2,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.83 : 5,056.11 = 2,172.50 : x
2. Step 2: Convert to fraction form
   3,663.83/5,056.11 = 2,172.50/x
3. Step 3: Cross multiply
   3,663.83x = 5,056.11 × 2,172.50
4. Step 4: Simplify right side
   3,663.83x = 10,984,398.98
5. Step 5: Solve for x
   x = 10,984,398.98/3,663.83
6. Step 6: Final answer
   x = 2,998.06