Finding the Fourth Proportional to 1,517.86, 2,091.72 and 1,167.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.86 : 2,091.72 = 1,167.94 : x
2. Step 2: Convert to fraction form
   1,517.86/2,091.72 = 1,167.94/x
3. Step 3: Cross multiply
   1,517.86x = 2,091.72 × 1,167.94
4. Step 4: Simplify right side
   1,517.86x = 2,443,003.46
5. Step 5: Solve for x
   x = 2,443,003.46/1,517.86
6. Step 6: Final answer
   x = 1,609.51