Finding the Fourth Proportional to 1,521.59, 2,276.37 and 1,172.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.59 : 2,276.37 = 1,172.27 : x
2. Step 2: Convert to fraction form
   1,521.59/2,276.37 = 1,172.27/x
3. Step 3: Cross multiply
   1,521.59x = 2,276.37 × 1,172.27
4. Step 4: Simplify right side
   1,521.59x = 2,668,525.95
5. Step 5: Solve for x
   x = 2,668,525.95/1,521.59
6. Step 6: Final answer
   x = 1,753.78