Finding the Fourth Proportional to 2,128,664.70, 2,940,756.15 and 1,395,359.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,664.70 : 2,940,756.15 = 1,395,359.82 : x
2. Step 2: Convert to fraction form
   2,128,664.70/2,940,756.15 = 1,395,359.82/x
3. Step 3: Cross multiply
   2,128,664.70x = 2,940,756.15 × 1,395,359.82
4. Step 4: Simplify right side
   2,128,664.70x = 4,103,412,972,127.89
5. Step 5: Solve for x
   x = 4,103,412,972,127.89/2,128,664.70
6. Step 6: Final answer
   x = 1,927,693.44