Finding the Fourth Proportional to 1,095.02, 1,642.55 and 611.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.02 : 1,642.55 = 611.15 : x
2. Step 2: Convert to fraction form
   1,095.02/1,642.55 = 611.15/x
3. Step 3: Cross multiply
   1,095.02x = 1,642.55 × 611.15
4. Step 4: Simplify right side
   1,095.02x = 1,003,841.38
5. Step 5: Solve for x
   x = 1,003,841.38/1,095.02
6. Step 6: Final answer
   x = 916.73