Finding the Fourth Proportional to 1,404.02, 1,937.90 and 907.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.02 : 1,937.90 = 907.94 : x
2. Step 2: Convert to fraction form
   1,404.02/1,937.90 = 907.94/x
3. Step 3: Cross multiply
   1,404.02x = 1,937.90 × 907.94
4. Step 4: Simplify right side
   1,404.02x = 1,759,496.93
5. Step 5: Solve for x
   x = 1,759,496.93/1,404.02
6. Step 6: Final answer
   x = 1,253.19