Finding the Fourth Proportional to 1,042.76, 1,437.83 and 853.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.76 : 1,437.83 = 853.10 : x
2. Step 2: Convert to fraction form
   1,042.76/1,437.83 = 853.10/x
3. Step 3: Cross multiply
   1,042.76x = 1,437.83 × 853.10
4. Step 4: Simplify right side
   1,042.76x = 1,226,612.10
5. Step 5: Solve for x
   x = 1,226,612.10/1,042.76
6. Step 6: Final answer
   x = 1,176.32