Finding the Fourth Proportional to 2,533.60, 3,797.79 and 1,215.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,533.60 : 3,797.79 = 1,215.42 : x
2. Step 2: Convert to fraction form
   2,533.60/3,797.79 = 1,215.42/x
3. Step 3: Cross multiply
   2,533.60x = 3,797.79 × 1,215.42
4. Step 4: Simplify right side
   2,533.60x = 4,615,922.45
5. Step 5: Solve for x
   x = 4,615,922.45/2,533.60
6. Step 6: Final answer
   x = 1,821.89