Finding the Fourth Proportional to 1,488.53, 2,055.04 and 899.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.53 : 2,055.04 = 899.26 : x
2. Step 2: Convert to fraction form
   1,488.53/2,055.04 = 899.26/x
3. Step 3: Cross multiply
   1,488.53x = 2,055.04 × 899.26
4. Step 4: Simplify right side
   1,488.53x = 1,848,007.88
5. Step 5: Solve for x
   x = 1,848,007.88/1,488.53
6. Step 6: Final answer
   x = 1,241.50