Finding the Fourth Proportional to 2,178,474.72, 3,264,722.60 and 1,378,323.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178,474.72 : 3,264,722.60 = 1,378,323.88 : x
2. Step 2: Convert to fraction form
   2,178,474.72/3,264,722.60 = 1,378,323.88/x
3. Step 3: Cross multiply
   2,178,474.72x = 3,264,722.60 × 1,378,323.88
4. Step 4: Simplify right side
   2,178,474.72x = 4,499,845,121,155.69
5. Step 5: Solve for x
   x = 4,499,845,121,155.69/2,178,474.72
6. Step 6: Final answer
   x = 2,065,594.37