Finding the Fourth Proportional to 2,628,105.60, 3,626,789.76 and 1,420,881.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628,105.60 : 3,626,789.76 = 1,420,881.28 : x
2. Step 2: Convert to fraction form
   2,628,105.60/3,626,789.76 = 1,420,881.28/x
3. Step 3: Cross multiply
   2,628,105.60x = 3,626,789.76 × 1,420,881.28
4. Step 4: Simplify right side
   2,628,105.60x = 5,153,237,676,479.69
5. Step 5: Solve for x
   x = 5,153,237,676,479.69/2,628,105.60
6. Step 6: Final answer
   x = 1,960,818.35