Finding the Fourth Proportional to 2,182,338.86, 3,011,721.10 and 1,215,469.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182,338.86 : 3,011,721.10 = 1,215,469.40 : x
2. Step 2: Convert to fraction form
   2,182,338.86/3,011,721.10 = 1,215,469.40/x
3. Step 3: Cross multiply
   2,182,338.86x = 3,011,721.10 × 1,215,469.40
4. Step 4: Simplify right side
   2,182,338.86x = 3,660,654,838,384.34
5. Step 5: Solve for x
   x = 3,660,654,838,384.34/2,182,338.86
6. Step 6: Final answer
   x = 1,677,399.83