Finding the Fourth Proportional to 1,351.29, 1,864.78 and 761.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.29 : 1,864.78 = 761.82 : x
2. Step 2: Convert to fraction form
   1,351.29/1,864.78 = 761.82/x
3. Step 3: Cross multiply
   1,351.29x = 1,864.78 × 761.82
4. Step 4: Simplify right side
   1,351.29x = 1,420,624.80
5. Step 5: Solve for x
   x = 1,420,624.80/1,351.29
6. Step 6: Final answer
   x = 1,051.31