Finding the Fourth Proportional to 2,573,978.72, 3,552,043.39 and 1,428,034.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573,978.72 : 3,552,043.39 = 1,428,034.46 : x
2. Step 2: Convert to fraction form
   2,573,978.72/3,552,043.39 = 1,428,034.46/x
3. Step 3: Cross multiply
   2,573,978.72x = 3,552,043.39 × 1,428,034.46
4. Step 4: Simplify right side
   2,573,978.72x = 5,072,440,343,004.92
5. Step 5: Solve for x
   x = 5,072,440,343,004.92/2,573,978.72
6. Step 6: Final answer
   x = 1,970,661.34