Finding the Fourth Proportional to 2,101.14, 3,152.31 and 802.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.14 : 3,152.31 = 802.71 : x
2. Step 2: Convert to fraction form
   2,101.14/3,152.31 = 802.71/x
3. Step 3: Cross multiply
   2,101.14x = 3,152.31 × 802.71
4. Step 4: Simplify right side
   2,101.14x = 2,530,390.76
5. Step 5: Solve for x
   x = 2,530,390.76/2,101.14
6. Step 6: Final answer
   x = 1,204.29