Finding the Fourth Proportional to 1,051.28, 1,450.76 and 585.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.28 : 1,450.76 = 585.53 : x
2. Step 2: Convert to fraction form
   1,051.28/1,450.76 = 585.53/x
3. Step 3: Cross multiply
   1,051.28x = 1,450.76 × 585.53
4. Step 4: Simplify right side
   1,051.28x = 849,456.25
5. Step 5: Solve for x
   x = 849,456.25/1,051.28
6. Step 6: Final answer
   x = 808.02