Finding the Fourth Proportional to 2,168,123.40, 3,248,807.40 and 819,550.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168,123.40 : 3,248,807.40 = 819,550.35 : x
2. Step 2: Convert to fraction form
   2,168,123.40/3,248,807.40 = 819,550.35/x
3. Step 3: Cross multiply
   2,168,123.40x = 3,248,807.40 × 819,550.35
4. Step 4: Simplify right side
   2,168,123.40x = 2,662,561,241,752.59
5. Step 5: Solve for x
   x = 2,662,561,241,752.59/2,168,123.40
6. Step 6: Final answer
   x = 1,228,048.75