Finding the Fourth Proportional to 1,564,986.96, 2,158,653.24 and 1,224,864.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564,986.96 : 2,158,653.24 = 1,224,864.72 : x
2. Step 2: Convert to fraction form
   1,564,986.96/2,158,653.24 = 1,224,864.72/x
3. Step 3: Cross multiply
   1,564,986.96x = 2,158,653.24 × 1,224,864.72
4. Step 4: Simplify right side
   1,564,986.96x = 2,644,058,196,389.69
5. Step 5: Solve for x
   x = 2,644,058,196,389.69/1,564,986.96
6. Step 6: Final answer
   x = 1,689,508.13