Finding the Fourth Proportional to 1,460.16, 2,015.28 and 900.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,460.16 : 2,015.28 = 900.72 : x
2. Step 2: Convert to fraction form
   1,460.16/2,015.28 = 900.72/x
3. Step 3: Cross multiply
   1,460.16x = 2,015.28 × 900.72
4. Step 4: Simplify right side
   1,460.16x = 1,815,203.00
5. Step 5: Solve for x
   x = 1,815,203.00/1,460.16
6. Step 6: Final answer
   x = 1,243.15