Finding the Fourth Proportional to 2,816.24, 4,225.72 and 1,356.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,816.24 : 4,225.72 = 1,356.60 : x
2. Step 2: Convert to fraction form
   2,816.24/4,225.72 = 1,356.60/x
3. Step 3: Cross multiply
   2,816.24x = 4,225.72 × 1,356.60
4. Step 4: Simplify right side
   2,816.24x = 5,732,611.75
5. Step 5: Solve for x
   x = 5,732,611.75/2,816.24
6. Step 6: Final answer
   x = 2,035.56