Finding the Fourth Proportional to 2,310.50, 3,188.56 and 1,262.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.50 : 3,188.56 = 1,262.63 : x
2. Step 2: Convert to fraction form
   2,310.50/3,188.56 = 1,262.63/x
3. Step 3: Cross multiply
   2,310.50x = 3,188.56 × 1,262.63
4. Step 4: Simplify right side
   2,310.50x = 4,025,971.51
5. Step 5: Solve for x
   x = 4,025,971.51/2,310.50
6. Step 6: Final answer
   x = 1,742.47