Finding the Fourth Proportional to 1,980.17, 2,730.82 and 1,700.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.17 : 2,730.82 = 1,700.31 : x
2. Step 2: Convert to fraction form
   1,980.17/2,730.82 = 1,700.31/x
3. Step 3: Cross multiply
   1,980.17x = 2,730.82 × 1,700.31
4. Step 4: Simplify right side
   1,980.17x = 4,643,240.55
5. Step 5: Solve for x
   x = 4,643,240.55/1,980.17
6. Step 6: Final answer
   x = 2,344.87