Finding the Fourth Proportional to 3,115.86, 4,672.42 and 1,166.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,115.86 : 4,672.42 = 1,166.69 : x
2. Step 2: Convert to fraction form
   3,115.86/4,672.42 = 1,166.69/x
3. Step 3: Cross multiply
   3,115.86x = 4,672.42 × 1,166.69
4. Step 4: Simplify right side
   3,115.86x = 5,451,274.45
5. Step 5: Solve for x
   x = 5,451,274.45/3,115.86
6. Step 6: Final answer
   x = 1,749.53