Finding the Fourth Proportional to 2,377,064.27, 3,280,324.55 and 1,289,312.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377,064.27 : 3,280,324.55 = 1,289,312.50 : x
2. Step 2: Convert to fraction form
   2,377,064.27/3,280,324.55 = 1,289,312.50/x
3. Step 3: Cross multiply
   2,377,064.27x = 3,280,324.55 × 1,289,312.50
4. Step 4: Simplify right side
   2,377,064.27x = 4,229,363,446,371.88
5. Step 5: Solve for x
   x = 4,229,363,446,371.88/2,377,064.27
6. Step 6: Final answer
   x = 1,779,238.16