Finding the Fourth Proportional to 2,037.31, 2,811.50 and 1,153.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,037.31 : 2,811.50 = 1,153.28 : x
2. Step 2: Convert to fraction form
   2,037.31/2,811.50 = 1,153.28/x
3. Step 3: Cross multiply
   2,037.31x = 2,811.50 × 1,153.28
4. Step 4: Simplify right side
   2,037.31x = 3,242,454.64
5. Step 5: Solve for x
   x = 3,242,454.64/2,037.31
6. Step 6: Final answer
   x = 1,591.54