Finding the Fourth Proportional to 2,310.72, 3,188.10 and 1,366.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.72 : 3,188.10 = 1,366.59 : x
2. Step 2: Convert to fraction form
   2,310.72/3,188.10 = 1,366.59/x
3. Step 3: Cross multiply
   2,310.72x = 3,188.10 × 1,366.59
4. Step 4: Simplify right side
   2,310.72x = 4,356,825.58
5. Step 5: Solve for x
   x = 4,356,825.58/2,310.72
6. Step 6: Final answer
   x = 1,885.48