Finding the Fourth Proportional to 2,310.96, 3,189.05 and 1,263.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.96 : 3,189.05 = 1,263.03 : x
2. Step 2: Convert to fraction form
   2,310.96/3,189.05 = 1,263.03/x
3. Step 3: Cross multiply
   2,310.96x = 3,189.05 × 1,263.03
4. Step 4: Simplify right side
   2,310.96x = 4,027,865.82
5. Step 5: Solve for x
   x = 4,027,865.82/2,310.96
6. Step 6: Final answer
   x = 1,742.94