Finding the Fourth Proportional to 1,077.30, 1,481.49 and 900.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.30 : 1,481.49 = 900.18 : x
2. Step 2: Convert to fraction form
   1,077.30/1,481.49 = 900.18/x
3. Step 3: Cross multiply
   1,077.30x = 1,481.49 × 900.18
4. Step 4: Simplify right side
   1,077.30x = 1,333,607.67
5. Step 5: Solve for x
   x = 1,333,607.67/1,077.30
6. Step 6: Final answer
   x = 1,237.92