Finding the Fourth Proportional to 950.89, 1,313.50 and 765.10

Step by Step Solution

1. Step 1: Write the proportion equation
   950.89 : 1,313.50 = 765.10 : x
2. Step 2: Convert to fraction form
   950.89/1,313.50 = 765.10/x
3. Step 3: Cross multiply
   950.89x = 1,313.50 × 765.10
4. Step 4: Simplify right side
   950.89x = 1,004,952.63
5. Step 5: Solve for x
   x = 1,004,952.63/950.89
6. Step 6: Final answer
   x = 1,056.86