Finding the Fourth Proportional to 1,510.79, 2,266.52 and 573.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.79 : 2,266.52 = 573.89 : x
2. Step 2: Convert to fraction form
   1,510.79/2,266.52 = 573.89/x
3. Step 3: Cross multiply
   1,510.79x = 2,266.52 × 573.89
4. Step 4: Simplify right side
   1,510.79x = 1,300,718.96
5. Step 5: Solve for x
   x = 1,300,718.96/1,510.79
6. Step 6: Final answer
   x = 860.96