Finding the Fourth Proportional to 3,200.17, 4,807.89 and 2,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,200.17 : 4,807.89 = 2,090.50 : x
2. Step 2: Convert to fraction form
   3,200.17/4,807.89 = 2,090.50/x
3. Step 3: Cross multiply
   3,200.17x = 4,807.89 × 2,090.50
4. Step 4: Simplify right side
   3,200.17x = 10,050,894.05
5. Step 5: Solve for x
   x = 10,050,894.05/3,200.17
6. Step 6: Final answer
   x = 3,140.74