Finding the Fourth Proportional to 3,768.61, 5,200.20 and 2,090.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.61 : 5,200.20 = 2,090.01 : x
2. Step 2: Convert to fraction form
   3,768.61/5,200.20 = 2,090.01/x
3. Step 3: Cross multiply
   3,768.61x = 5,200.20 × 2,090.01
4. Step 4: Simplify right side
   3,768.61x = 10,868,470.00
5. Step 5: Solve for x
   x = 10,868,470.00/3,768.61
6. Step 6: Final answer
   x = 2,883.95