Finding the Fourth Proportional to 2,320.61, 3,480.04 and 933.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.61 : 3,480.04 = 933.47 : x
2. Step 2: Convert to fraction form
   2,320.61/3,480.04 = 933.47/x
3. Step 3: Cross multiply
   2,320.61x = 3,480.04 × 933.47
4. Step 4: Simplify right side
   2,320.61x = 3,248,508.27
5. Step 5: Solve for x
   x = 3,248,508.27/2,320.61
6. Step 6: Final answer
   x = 1,399.85