Finding the Fourth Proportional to 1,167.18, 1,610.76 and 773.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.18 : 1,610.76 = 773.94 : x
2. Step 2: Convert to fraction form
   1,167.18/1,610.76 = 773.94/x
3. Step 3: Cross multiply
   1,167.18x = 1,610.76 × 773.94
4. Step 4: Simplify right side
   1,167.18x = 1,246,631.59
5. Step 5: Solve for x
   x = 1,246,631.59/1,167.18
6. Step 6: Final answer
   x = 1,068.07