Finding the Fourth Proportional to 2,201.72, 3,298.47 and 1,583.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,201.72 : 3,298.47 = 1,583.89 : x
2. Step 2: Convert to fraction form
   2,201.72/3,298.47 = 1,583.89/x
3. Step 3: Cross multiply
   2,201.72x = 3,298.47 × 1,583.89
4. Step 4: Simplify right side
   2,201.72x = 5,224,413.65
5. Step 5: Solve for x
   x = 5,224,413.65/2,201.72
6. Step 6: Final answer
   x = 2,372.88