Finding the Fourth Proportional to 1,037.59, 1,431.89 and 589.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,037.59 : 1,431.89 = 589.45 : x
2. Step 2: Convert to fraction form
   1,037.59/1,431.89 = 589.45/x
3. Step 3: Cross multiply
   1,037.59x = 1,431.89 × 589.45
4. Step 4: Simplify right side
   1,037.59x = 844,027.56
5. Step 5: Solve for x
   x = 844,027.56/1,037.59
6. Step 6: Final answer
   x = 813.45