Finding the Fourth Proportional to 1,522.61, 2,288.17 and 906.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.61 : 2,288.17 = 906.41 : x
2. Step 2: Convert to fraction form
   1,522.61/2,288.17 = 906.41/x
3. Step 3: Cross multiply
   1,522.61x = 2,288.17 × 906.41
4. Step 4: Simplify right side
   1,522.61x = 2,074,008.73
5. Step 5: Solve for x
   x = 2,074,008.73/1,522.61
6. Step 6: Final answer
   x = 1,362.14