Finding the Fourth Proportional to 1,625.27, 2,242.71 and 917.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,625.27 : 2,242.71 = 917.05 : x
2. Step 2: Convert to fraction form
   1,625.27/2,242.71 = 917.05/x
3. Step 3: Cross multiply
   1,625.27x = 2,242.71 × 917.05
4. Step 4: Simplify right side
   1,625.27x = 2,056,675.80
5. Step 5: Solve for x
   x = 2,056,675.80/1,625.27
6. Step 6: Final answer
   x = 1,265.44