Finding the Fourth Proportional to 2,619,392.86, 3,929,077.14 and 726,128.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619,392.86 : 3,929,077.14 = 726,128.02 : x
2. Step 2: Convert to fraction form
   2,619,392.86/3,929,077.14 = 726,128.02/x
3. Step 3: Cross multiply
   2,619,392.86x = 3,929,077.14 × 726,128.02
4. Step 4: Simplify right side
   2,619,392.86x = 2,853,013,004,095.46
5. Step 5: Solve for x
   x = 2,853,013,004,095.46/2,619,392.86
6. Step 6: Final answer
   x = 1,089,188.66