Finding the Fourth Proportional to 1,360.92, 1,875.88 and 918.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.92 : 1,875.88 = 918.05 : x
2. Step 2: Convert to fraction form
   1,360.92/1,875.88 = 918.05/x
3. Step 3: Cross multiply
   1,360.92x = 1,875.88 × 918.05
4. Step 4: Simplify right side
   1,360.92x = 1,722,156.54
5. Step 5: Solve for x
   x = 1,722,156.54/1,360.92
6. Step 6: Final answer
   x = 1,265.44