Finding the Fourth Proportional to 2,406.79, 3,611.60 and 1,020.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.79 : 3,611.60 = 1,020.02 : x
2. Step 2: Convert to fraction form
   2,406.79/3,611.60 = 1,020.02/x
3. Step 3: Cross multiply
   2,406.79x = 3,611.60 × 1,020.02
4. Step 4: Simplify right side
   2,406.79x = 3,683,899.13
5. Step 5: Solve for x
   x = 3,683,899.13/2,406.79
6. Step 6: Final answer
   x = 1,530.63