Finding the Fourth Proportional to 1,341.50, 2,010.86 and 756.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.50 : 2,010.86 = 756.78 : x
2. Step 2: Convert to fraction form
   1,341.50/2,010.86 = 756.78/x
3. Step 3: Cross multiply
   1,341.50x = 2,010.86 × 756.78
4. Step 4: Simplify right side
   1,341.50x = 1,521,778.63
5. Step 5: Solve for x
   x = 1,521,778.63/1,341.50
6. Step 6: Final answer
   x = 1,134.39