Finding the Fourth Proportional to 2,620.33, 3,930.22 and 1,061.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.33 : 3,930.22 = 1,061.14 : x
2. Step 2: Convert to fraction form
   2,620.33/3,930.22 = 1,061.14/x
3. Step 3: Cross multiply
   2,620.33x = 3,930.22 × 1,061.14
4. Step 4: Simplify right side
   2,620.33x = 4,170,513.65
5. Step 5: Solve for x
   x = 4,170,513.65/2,620.33
6. Step 6: Final answer
   x = 1,591.60