Finding the Fourth Proportional to 2,588,510.88, 3,880,258.56 and 989,843.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588,510.88 : 3,880,258.56 = 989,843.04 : x
2. Step 2: Convert to fraction form
   2,588,510.88/3,880,258.56 = 989,843.04/x
3. Step 3: Cross multiply
   2,588,510.88x = 3,880,258.56 × 989,843.04
4. Step 4: Simplify right side
   2,588,510.88x = 3,840,846,929,016.42
5. Step 5: Solve for x
   x = 3,840,846,929,016.42/2,588,510.88
6. Step 6: Final answer
   x = 1,483,805.60