Finding the Fourth Proportional to 2,047.66, 3,070.35 and 1,399.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.66 : 3,070.35 = 1,399.18 : x
2. Step 2: Convert to fraction form
   2,047.66/3,070.35 = 1,399.18/x
3. Step 3: Cross multiply
   2,047.66x = 3,070.35 × 1,399.18
4. Step 4: Simplify right side
   2,047.66x = 4,295,972.31
5. Step 5: Solve for x
   x = 4,295,972.31/2,047.66
6. Step 6: Final answer
   x = 2,097.99