Finding the Fourth Proportional to 1,337.72, 1,844.30 and 917.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.72 : 1,844.30 = 917.32 : x
2. Step 2: Convert to fraction form
   1,337.72/1,844.30 = 917.32/x
3. Step 3: Cross multiply
   1,337.72x = 1,844.30 × 917.32
4. Step 4: Simplify right side
   1,337.72x = 1,691,813.28
5. Step 5: Solve for x
   x = 1,691,813.28/1,337.72
6. Step 6: Final answer
   x = 1,264.70