Finding the Fourth Proportional to 3,607,949.86, 4,978,807.76 and 2,158,444.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607,949.86 : 4,978,807.76 = 2,158,444.53 : x
2. Step 2: Convert to fraction form
   3,607,949.86/4,978,807.76 = 2,158,444.53/x
3. Step 3: Cross multiply
   3,607,949.86x = 4,978,807.76 × 2,158,444.53
4. Step 4: Simplify right side
   3,607,949.86x = 10,746,480,380,889.66
5. Step 5: Solve for x
   x = 10,746,480,380,889.66/3,607,949.86
6. Step 6: Final answer
   x = 2,978,555.91