Finding the Fourth Proportional to 3,002.34, 4,502.94 and 921.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,002.34 : 4,502.94 = 921.77 : x
2. Step 2: Convert to fraction form
   3,002.34/4,502.94 = 921.77/x
3. Step 3: Cross multiply
   3,002.34x = 4,502.94 × 921.77
4. Step 4: Simplify right side
   3,002.34x = 4,150,664.77
5. Step 5: Solve for x
   x = 4,150,664.77/3,002.34
6. Step 6: Final answer
   x = 1,382.48