Finding the Fourth Proportional to 1,401.08, 1,934.78 and 904.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.08 : 1,934.78 = 904.56 : x
2. Step 2: Convert to fraction form
   1,401.08/1,934.78 = 904.56/x
3. Step 3: Cross multiply
   1,401.08x = 1,934.78 × 904.56
4. Step 4: Simplify right side
   1,401.08x = 1,750,120.07
5. Step 5: Solve for x
   x = 1,750,120.07/1,401.08
6. Step 6: Final answer
   x = 1,249.13