Finding the Fourth Proportional to 2,599,662.78, 3,587,467.50 and 1,438,078.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599,662.78 : 3,587,467.50 = 1,438,078.77 : x
2. Step 2: Convert to fraction form
   2,599,662.78/3,587,467.50 = 1,438,078.77/x
3. Step 3: Cross multiply
   2,599,662.78x = 3,587,467.50 × 1,438,078.77
4. Step 4: Simplify right side
   2,599,662.78x = 5,159,060,849,814.97
5. Step 5: Solve for x
   x = 5,159,060,849,814.97/2,599,662.78
6. Step 6: Final answer
   x = 1,984,511.56