Finding the Fourth Proportional to 1,068.60, 1,474.83 and 773.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.60 : 1,474.83 = 773.76 : x
2. Step 2: Convert to fraction form
   1,068.60/1,474.83 = 773.76/x
3. Step 3: Cross multiply
   1,068.60x = 1,474.83 × 773.76
4. Step 4: Simplify right side
   1,068.60x = 1,141,164.46
5. Step 5: Solve for x
   x = 1,141,164.46/1,068.60
6. Step 6: Final answer
   x = 1,067.91