Finding the Fourth Proportional to 2,331.60, 3,499.16 and 1,176.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,331.60 : 3,499.16 = 1,176.72 : x
2. Step 2: Convert to fraction form
   2,331.60/3,499.16 = 1,176.72/x
3. Step 3: Cross multiply
   2,331.60x = 3,499.16 × 1,176.72
4. Step 4: Simplify right side
   2,331.60x = 4,117,531.56
5. Step 5: Solve for x
   x = 4,117,531.56/2,331.60
6. Step 6: Final answer
   x = 1,765.97