Finding the Fourth Proportional to 2,057,584.88, 2,839,436.32 and 1,139,811.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057,584.88 : 2,839,436.32 = 1,139,811.28 : x
2. Step 2: Convert to fraction form
   2,057,584.88/2,839,436.32 = 1,139,811.28/x
3. Step 3: Cross multiply
   2,057,584.88x = 2,839,436.32 × 1,139,811.28
4. Step 4: Simplify right side
   2,057,584.88x = 3,236,421,546,377.69
5. Step 5: Solve for x
   x = 3,236,421,546,377.69/2,057,584.88
6. Step 6: Final answer
   x = 1,572,922.50