Finding the Fourth Proportional to 1,360.48, 1,876.89 and 917.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.48 : 1,876.89 = 917.62 : x
2. Step 2: Convert to fraction form
   1,360.48/1,876.89 = 917.62/x
3. Step 3: Cross multiply
   1,360.48x = 1,876.89 × 917.62
4. Step 4: Simplify right side
   1,360.48x = 1,722,271.80
5. Step 5: Solve for x
   x = 1,722,271.80/1,360.48
6. Step 6: Final answer
   x = 1,265.93