Finding the Fourth Proportional to 2,310.25, 3,188.15 and 1,262.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.25 : 3,188.15 = 1,262.31 : x
2. Step 2: Convert to fraction form
   2,310.25/3,188.15 = 1,262.31/x
3. Step 3: Cross multiply
   2,310.25x = 3,188.15 × 1,262.31
4. Step 4: Simplify right side
   2,310.25x = 4,024,433.63
5. Step 5: Solve for x
   x = 4,024,433.63/2,310.25
6. Step 6: Final answer
   x = 1,741.99