Finding the Fourth Proportional to 2,407.59, 3,607.74 and 1,020.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.59 : 3,607.74 = 1,020.15 : x
2. Step 2: Convert to fraction form
   2,407.59/3,607.74 = 1,020.15/x
3. Step 3: Cross multiply
   2,407.59x = 3,607.74 × 1,020.15
4. Step 4: Simplify right side
   2,407.59x = 3,680,435.96
5. Step 5: Solve for x
   x = 3,680,435.96/2,407.59
6. Step 6: Final answer
   x = 1,528.68