Finding the Fourth Proportional to 2,620.02, 3,928.49 and 1,060.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.02 : 3,928.49 = 1,060.07 : x
2. Step 2: Convert to fraction form
   2,620.02/3,928.49 = 1,060.07/x
3. Step 3: Cross multiply
   2,620.02x = 3,928.49 × 1,060.07
4. Step 4: Simplify right side
   2,620.02x = 4,164,474.39
5. Step 5: Solve for x
   x = 4,164,474.39/2,620.02
6. Step 6: Final answer
   x = 1,589.48