Finding the Fourth Proportional to 1,488.34, 2,233.04 and 904.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.34 : 2,233.04 = 904.53 : x
2. Step 2: Convert to fraction form
   1,488.34/2,233.04 = 904.53/x
3. Step 3: Cross multiply
   1,488.34x = 2,233.04 × 904.53
4. Step 4: Simplify right side
   1,488.34x = 2,019,853.93
5. Step 5: Solve for x
   x = 2,019,853.93/1,488.34
6. Step 6: Final answer
   x = 1,357.12