Finding the Fourth Proportional to 1,460.30, 2,015.76 and 900.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,460.30 : 2,015.76 = 900.86 : x
2. Step 2: Convert to fraction form
   1,460.30/2,015.76 = 900.86/x
3. Step 3: Cross multiply
   1,460.30x = 2,015.76 × 900.86
4. Step 4: Simplify right side
   1,460.30x = 1,815,917.55
5. Step 5: Solve for x
   x = 1,815,917.55/1,460.30
6. Step 6: Final answer
   x = 1,243.52