Finding the Fourth Proportional to 2,958.30, 4,437.72 and 766.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,958.30 : 4,437.72 = 766.98 : x
2. Step 2: Convert to fraction form
   2,958.30/4,437.72 = 766.98/x
3. Step 3: Cross multiply
   2,958.30x = 4,437.72 × 766.98
4. Step 4: Simplify right side
   2,958.30x = 3,403,642.49
5. Step 5: Solve for x
   x = 3,403,642.49/2,958.30
6. Step 6: Final answer
   x = 1,150.54