Finding the Fourth Proportional to 3,385.83, 5,075.64 and 2,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,385.83 : 5,075.64 = 2,149.50 : x
2. Step 2: Convert to fraction form
   3,385.83/5,075.64 = 2,149.50/x
3. Step 3: Cross multiply
   3,385.83x = 5,075.64 × 2,149.50
4. Step 4: Simplify right side
   3,385.83x = 10,910,088.18
5. Step 5: Solve for x
   x = 10,910,088.18/3,385.83
6. Step 6: Final answer
   x = 3,222.28