Finding the Fourth Proportional to 2,001.20, 3,002.52 and 904.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,001.20 : 3,002.52 = 904.74 : x
2. Step 2: Convert to fraction form
   2,001.20/3,002.52 = 904.74/x
3. Step 3: Cross multiply
   2,001.20x = 3,002.52 × 904.74
4. Step 4: Simplify right side
   2,001.20x = 2,716,499.94
5. Step 5: Solve for x
   x = 2,716,499.94/2,001.20
6. Step 6: Final answer
   x = 1,357.44