Finding the Fourth Proportional to 1,061.45, 1,464.80 and 589.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.45 : 1,464.80 = 589.35 : x
2. Step 2: Convert to fraction form
   1,061.45/1,464.80 = 589.35/x
3. Step 3: Cross multiply
   1,061.45x = 1,464.80 × 589.35
4. Step 4: Simplify right side
   1,061.45x = 863,279.14
5. Step 5: Solve for x
   x = 863,279.14/1,061.45
6. Step 6: Final answer
   x = 813.31