Finding the Fourth Proportional to 3,003.21, 4,505.68 and 923.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,003.21 : 4,505.68 = 923.52 : x
2. Step 2: Convert to fraction form
   3,003.21/4,505.68 = 923.52/x
3. Step 3: Cross multiply
   3,003.21x = 4,505.68 × 923.52
4. Step 4: Simplify right side
   3,003.21x = 4,161,085.59
5. Step 5: Solve for x
   x = 4,161,085.59/3,003.21
6. Step 6: Final answer
   x = 1,385.55