Finding the Fourth Proportional to 1,488.23, 2,054.12 and 899.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.23 : 2,054.12 = 899.16 : x
2. Step 2: Convert to fraction form
   1,488.23/2,054.12 = 899.16/x
3. Step 3: Cross multiply
   1,488.23x = 2,054.12 × 899.16
4. Step 4: Simplify right side
   1,488.23x = 1,846,982.54
5. Step 5: Solve for x
   x = 1,846,982.54/1,488.23
6. Step 6: Final answer
   x = 1,241.06