Finding the Fourth Proportional to 2,952.21, 4,428.50 and 760.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,952.21 : 4,428.50 = 760.89 : x
2. Step 2: Convert to fraction form
   2,952.21/4,428.50 = 760.89/x
3. Step 3: Cross multiply
   2,952.21x = 4,428.50 × 760.89
4. Step 4: Simplify right side
   2,952.21x = 3,369,601.37
5. Step 5: Solve for x
   x = 3,369,601.37/2,952.21
6. Step 6: Final answer
   x = 1,141.38