Finding the Fourth Proportional to 1,404.16, 1,937.76 and 906.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.16 : 1,937.76 = 906.82 : x
2. Step 2: Convert to fraction form
   1,404.16/1,937.76 = 906.82/x
3. Step 3: Cross multiply
   1,404.16x = 1,937.76 × 906.82
4. Step 4: Simplify right side
   1,404.16x = 1,757,199.52
5. Step 5: Solve for x
   x = 1,757,199.52/1,404.16
6. Step 6: Final answer
   x = 1,251.42