Finding the Fourth Proportional to 1,083.91, 1,626.49 and 1,075.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.91 : 1,626.49 = 1,075.10 : x
2. Step 2: Convert to fraction form
   1,083.91/1,626.49 = 1,075.10/x
3. Step 3: Cross multiply
   1,083.91x = 1,626.49 × 1,075.10
4. Step 4: Simplify right side
   1,083.91x = 1,748,640.78
5. Step 5: Solve for x
   x = 1,748,640.78/1,083.91
6. Step 6: Final answer
   x = 1,613.27