Finding the Fourth Proportional to 1,400.72, 1,931.54 and 1,202.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.72 : 1,931.54 = 1,202.27 : x
2. Step 2: Convert to fraction form
   1,400.72/1,931.54 = 1,202.27/x
3. Step 3: Cross multiply
   1,400.72x = 1,931.54 × 1,202.27
4. Step 4: Simplify right side
   1,400.72x = 2,322,216.93
5. Step 5: Solve for x
   x = 2,322,216.93/1,400.72
6. Step 6: Final answer
   x = 1,657.88