Finding the Fourth Proportional to 1,046.94, 1,574.73 and 917.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.94 : 1,574.73 = 917.34 : x
2. Step 2: Convert to fraction form
   1,046.94/1,574.73 = 917.34/x
3. Step 3: Cross multiply
   1,046.94x = 1,574.73 × 917.34
4. Step 4: Simplify right side
   1,046.94x = 1,444,562.82
5. Step 5: Solve for x
   x = 1,444,562.82/1,046.94
6. Step 6: Final answer
   x = 1,379.80