Finding the Fourth Proportional to 2,187,074.55, 3,280,233.56 and 988,718.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187,074.55 : 3,280,233.56 = 988,718.16 : x
2. Step 2: Convert to fraction form
   2,187,074.55/3,280,233.56 = 988,718.16/x
3. Step 3: Cross multiply
   2,187,074.55x = 3,280,233.56 × 988,718.16
4. Step 4: Simplify right side
   2,187,074.55x = 3,243,226,484,869.86
5. Step 5: Solve for x
   x = 3,243,226,484,869.86/2,187,074.55
6. Step 6: Final answer
   x = 1,482,906.23