Finding the Fourth Proportional to 2,571,686.81, 3,855,736.87 and 1,131,678.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571,686.81 : 3,855,736.87 = 1,131,678.53 : x
2. Step 2: Convert to fraction form
   2,571,686.81/3,855,736.87 = 1,131,678.53/x
3. Step 3: Cross multiply
   2,571,686.81x = 3,855,736.87 × 1,131,678.53
4. Step 4: Simplify right side
   2,571,686.81x = 4,363,454,608,171.32
5. Step 5: Solve for x
   x = 4,363,454,608,171.32/2,571,686.81
6. Step 6: Final answer
   x = 1,696,728.62