Finding the Fourth Proportional to 1,100.18, 1,518.96 and 851.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.18 : 1,518.96 = 851.06 : x
2. Step 2: Convert to fraction form
   1,100.18/1,518.96 = 851.06/x
3. Step 3: Cross multiply
   1,100.18x = 1,518.96 × 851.06
4. Step 4: Simplify right side
   1,100.18x = 1,292,726.10
5. Step 5: Solve for x
   x = 1,292,726.10/1,100.18
6. Step 6: Final answer
   x = 1,175.01