Finding the Fourth Proportional to 1,046.17, 1,575.35 and 774.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.17 : 1,575.35 = 774.18 : x
2. Step 2: Convert to fraction form
   1,046.17/1,575.35 = 774.18/x
3. Step 3: Cross multiply
   1,046.17x = 1,575.35 × 774.18
4. Step 4: Simplify right side
   1,046.17x = 1,219,604.46
5. Step 5: Solve for x
   x = 1,219,604.46/1,046.17
6. Step 6: Final answer
   x = 1,165.78