Finding the Fourth Proportional to 1,146.48, 1,712.06 and 900.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.48 : 1,712.06 = 900.24 : x
2. Step 2: Convert to fraction form
   1,146.48/1,712.06 = 900.24/x
3. Step 3: Cross multiply
   1,146.48x = 1,712.06 × 900.24
4. Step 4: Simplify right side
   1,146.48x = 1,541,264.89
5. Step 5: Solve for x
   x = 1,541,264.89/1,146.48
6. Step 6: Final answer
   x = 1,344.35