Finding the Fourth Proportional to 1,083.51, 1,494.88 and 611.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.51 : 1,494.88 = 611.35 : x
2. Step 2: Convert to fraction form
   1,083.51/1,494.88 = 611.35/x
3. Step 3: Cross multiply
   1,083.51x = 1,494.88 × 611.35
4. Step 4: Simplify right side
   1,083.51x = 913,894.89
5. Step 5: Solve for x
   x = 913,894.89/1,083.51
6. Step 6: Final answer
   x = 843.46