Finding the Fourth Proportional to 2,037.56, 2,811.69 and 1,153.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,037.56 : 2,811.69 = 1,153.20 : x
2. Step 2: Convert to fraction form
   2,037.56/2,811.69 = 1,153.20/x
3. Step 3: Cross multiply
   2,037.56x = 2,811.69 × 1,153.20
4. Step 4: Simplify right side
   2,037.56x = 3,242,424.48
5. Step 5: Solve for x
   x = 3,242,424.48/2,037.56
6. Step 6: Final answer
   x = 1,591.32