Finding the Fourth Proportional to 2,172,474.22, 2,998,016.15 and 1,205,605.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,474.22 : 2,998,016.15 = 1,205,605.28 : x
2. Step 2: Convert to fraction form
   2,172,474.22/2,998,016.15 = 1,205,605.28/x
3. Step 3: Cross multiply
   2,172,474.22x = 2,998,016.15 × 1,205,605.28
4. Step 4: Simplify right side
   2,172,474.22x = 3,614,424,088,784.56
5. Step 5: Solve for x
   x = 3,614,424,088,784.56/2,172,474.22
6. Step 6: Final answer
   x = 1,663,736.24