Finding the Fourth Proportional to 1,404.89, 1,938.17 and 907.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.89 : 1,938.17 = 907.34 : x
2. Step 2: Convert to fraction form
   1,404.89/1,938.17 = 907.34/x
3. Step 3: Cross multiply
   1,404.89x = 1,938.17 × 907.34
4. Step 4: Simplify right side
   1,404.89x = 1,758,586.28
5. Step 5: Solve for x
   x = 1,758,586.28/1,404.89
6. Step 6: Final answer
   x = 1,251.77