Finding the Fourth Proportional to 3,674.25, 5,070.50 and 2,102.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,674.25 : 5,070.50 = 2,102.31 : x
2. Step 2: Convert to fraction form
   3,674.25/5,070.50 = 2,102.31/x
3. Step 3: Cross multiply
   3,674.25x = 5,070.50 × 2,102.31
4. Step 4: Simplify right side
   3,674.25x = 10,659,752.34
5. Step 5: Solve for x
   x = 10,659,752.34/3,674.25
6. Step 6: Final answer
   x = 2,901.20