Finding the Fourth Proportional to 2,080.02, 3,116.79 and 1,671.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.02 : 3,116.79 = 1,671.78 : x
2. Step 2: Convert to fraction form
   2,080.02/3,116.79 = 1,671.78/x
3. Step 3: Cross multiply
   2,080.02x = 3,116.79 × 1,671.78
4. Step 4: Simplify right side
   2,080.02x = 5,210,587.19
5. Step 5: Solve for x
   x = 5,210,587.19/2,080.02
6. Step 6: Final answer
   x = 2,505.07