Finding the Fourth Proportional to 2,310.66, 3,188.72 and 1,262.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.66 : 3,188.72 = 1,262.72 : x
2. Step 2: Convert to fraction form
   2,310.66/3,188.72 = 1,262.72/x
3. Step 3: Cross multiply
   2,310.66x = 3,188.72 × 1,262.72
4. Step 4: Simplify right side
   2,310.66x = 4,026,462.18
5. Step 5: Solve for x
   x = 4,026,462.18/2,310.66
6. Step 6: Final answer
   x = 1,742.56