Finding the Fourth Proportional to 1,746.16, 2,618.17 and 705.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,746.16 : 2,618.17 = 705.31 : x
2. Step 2: Convert to fraction form
   1,746.16/2,618.17 = 705.31/x
3. Step 3: Cross multiply
   1,746.16x = 2,618.17 × 705.31
4. Step 4: Simplify right side
   1,746.16x = 1,846,621.48
5. Step 5: Solve for x
   x = 1,846,621.48/1,746.16
6. Step 6: Final answer
   x = 1,057.53