Finding the Fourth Proportional to 1,053,116.42, 1,580,560.82 and 986,686.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053,116.42 : 1,580,560.82 = 986,686.30 : x
2. Step 2: Convert to fraction form
   1,053,116.42/1,580,560.82 = 986,686.30/x
3. Step 3: Cross multiply
   1,053,116.42x = 1,580,560.82 × 986,686.30
4. Step 4: Simplify right side
   1,053,116.42x = 1,559,517,705,926.08
5. Step 5: Solve for x
   x = 1,559,517,705,926.08/1,053,116.42
6. Step 6: Final answer
   x = 1,480,859.73