Finding the Fourth Proportional to 2,172,828.56, 2,998,643.52 and 1,205,958.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,828.56 : 2,998,643.52 = 1,205,958.88 : x
2. Step 2: Convert to fraction form
   2,172,828.56/2,998,643.52 = 1,205,958.88/x
3. Step 3: Cross multiply
   2,172,828.56x = 2,998,643.52 × 1,205,958.88
4. Step 4: Simplify right side
   2,172,828.56x = 3,616,240,780,898.46
5. Step 5: Solve for x
   x = 3,616,240,780,898.46/2,172,828.56
6. Step 6: Final answer
   x = 1,664,301.02