Finding the Fourth Proportional to 1,035.89, 1,429.47 and 587.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035.89 : 1,429.47 = 587.69 : x
2. Step 2: Convert to fraction form
   1,035.89/1,429.47 = 587.69/x
3. Step 3: Cross multiply
   1,035.89x = 1,429.47 × 587.69
4. Step 4: Simplify right side
   1,035.89x = 840,078.08
5. Step 5: Solve for x
   x = 840,078.08/1,035.89
6. Step 6: Final answer
   x = 810.98