Finding the Fourth Proportional to 3,514.88, 5,272.37 and 917.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,514.88 : 5,272.37 = 917.81 : x
2. Step 2: Convert to fraction form
   3,514.88/5,272.37 = 917.81/x
3. Step 3: Cross multiply
   3,514.88x = 5,272.37 × 917.81
4. Step 4: Simplify right side
   3,514.88x = 4,839,042.50
5. Step 5: Solve for x
   x = 4,839,042.50/3,514.88
6. Step 6: Final answer
   x = 1,376.73