Finding the Fourth Proportional to 1,093.09, 1,630.41 and 917.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.09 : 1,630.41 = 917.71 : x
2. Step 2: Convert to fraction form
   1,093.09/1,630.41 = 917.71/x
3. Step 3: Cross multiply
   1,093.09x = 1,630.41 × 917.71
4. Step 4: Simplify right side
   1,093.09x = 1,496,243.56
5. Step 5: Solve for x
   x = 1,496,243.56/1,093.09
6. Step 6: Final answer
   x = 1,368.82