Finding the Fourth Proportional to 1,083.74, 1,495.61 and 611.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.74 : 1,495.61 = 611.82 : x
2. Step 2: Convert to fraction form
   1,083.74/1,495.61 = 611.82/x
3. Step 3: Cross multiply
   1,083.74x = 1,495.61 × 611.82
4. Step 4: Simplify right side
   1,083.74x = 915,041.05
5. Step 5: Solve for x
   x = 915,041.05/1,083.74
6. Step 6: Final answer
   x = 844.34