Finding the Fourth Proportional to 2,409,807.78, 3,614,563.78 and 989,827.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,409,807.78 : 3,614,563.78 = 989,827.02 : x
2. Step 2: Convert to fraction form
   2,409,807.78/3,614,563.78 = 989,827.02/x
3. Step 3: Cross multiply
   2,409,807.78x = 3,614,563.78 × 989,827.02
4. Step 4: Simplify right side
   2,409,807.78x = 3,577,792,892,482.77
5. Step 5: Solve for x
   x = 3,577,792,892,482.77/2,409,807.78
6. Step 6: Final answer
   x = 1,484,679.78