Finding the Fourth Proportional to 1,054.89, 1,455.72 and 589.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.89 : 1,455.72 = 589.14 : x
2. Step 2: Convert to fraction form
   1,054.89/1,455.72 = 589.14/x
3. Step 3: Cross multiply
   1,054.89x = 1,455.72 × 589.14
4. Step 4: Simplify right side
   1,054.89x = 857,622.88
5. Step 5: Solve for x
   x = 857,622.88/1,054.89
6. Step 6: Final answer
   x = 813.00