Finding the Fourth Proportional to 2,057,729.88, 2,839,636.56 and 1,139,957.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057,729.88 : 2,839,636.56 = 1,139,957.10 : x
2. Step 2: Convert to fraction form
   2,057,729.88/2,839,636.56 = 1,139,957.10/x
3. Step 3: Cross multiply
   2,057,729.88x = 2,839,636.56 × 1,139,957.10
4. Step 4: Simplify right side
   2,057,729.88x = 3,237,063,857,991.58
5. Step 5: Solve for x
   x = 3,237,063,857,991.58/2,057,729.88
6. Step 6: Final answer
   x = 1,573,123.80