Finding the Fourth Proportional to 1,406.01, 1,940.74 and 908.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.01 : 1,940.74 = 908.64 : x
2. Step 2: Convert to fraction form
   1,406.01/1,940.74 = 908.64/x
3. Step 3: Cross multiply
   1,406.01x = 1,940.74 × 908.64
4. Step 4: Simplify right side
   1,406.01x = 1,763,431.72
5. Step 5: Solve for x
   x = 1,763,431.72/1,406.01
6. Step 6: Final answer
   x = 1,254.21