Finding the Fourth Proportional to 1,523.34, 2,281.33 and 872.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,523.34 : 2,281.33 = 872.10 : x
2. Step 2: Convert to fraction form
   1,523.34/2,281.33 = 872.10/x
3. Step 3: Cross multiply
   1,523.34x = 2,281.33 × 872.10
4. Step 4: Simplify right side
   1,523.34x = 1,989,547.89
5. Step 5: Solve for x
   x = 1,989,547.89/1,523.34
6. Step 6: Final answer
   x = 1,306.04