Finding the Fourth Proportional to 1,522.47, 2,281.88 and 699.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.47 : 2,281.88 = 699.61 : x
2. Step 2: Convert to fraction form
   1,522.47/2,281.88 = 699.61/x
3. Step 3: Cross multiply
   1,522.47x = 2,281.88 × 699.61
4. Step 4: Simplify right side
   1,522.47x = 1,596,426.07
5. Step 5: Solve for x
   x = 1,596,426.07/1,522.47
6. Step 6: Final answer
   x = 1,048.58