Finding the Fourth Proportional to 2,578,570.74, 3,866,003.46 and 1,211,573.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,570.74 : 3,866,003.46 = 1,211,573.61 : x
2. Step 2: Convert to fraction form
   2,578,570.74/3,866,003.46 = 1,211,573.61/x
3. Step 3: Cross multiply
   2,578,570.74x = 3,866,003.46 × 1,211,573.61
4. Step 4: Simplify right side
   2,578,570.74x = 4,683,947,768,304.69
5. Step 5: Solve for x
   x = 4,683,947,768,304.69/2,578,570.74
6. Step 6: Final answer
   x = 1,816,489.92