Finding the Fourth Proportional to 2,826.61, 3,900.77 and 1,550.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,826.61 : 3,900.77 = 1,550.59 : x
2. Step 2: Convert to fraction form
   2,826.61/3,900.77 = 1,550.59/x
3. Step 3: Cross multiply
   2,826.61x = 3,900.77 × 1,550.59
4. Step 4: Simplify right side
   2,826.61x = 6,048,467.70
5. Step 5: Solve for x
   x = 6,048,467.70/2,826.61
6. Step 6: Final answer
   x = 2,139.83