Finding the Fourth Proportional to 1,400.86, 1,931.97 and 903.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.86 : 1,931.97 = 903.34 : x
2. Step 2: Convert to fraction form
   1,400.86/1,931.97 = 903.34/x
3. Step 3: Cross multiply
   1,400.86x = 1,931.97 × 903.34
4. Step 4: Simplify right side
   1,400.86x = 1,745,225.78
5. Step 5: Solve for x
   x = 1,745,225.78/1,400.86
6. Step 6: Final answer
   x = 1,245.82