Finding the Fourth Proportional to 1,400.04, 1,931.96 and 810.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.04 : 1,931.96 = 810.54 : x
2. Step 2: Convert to fraction form
   1,400.04/1,931.96 = 810.54/x
3. Step 3: Cross multiply
   1,400.04x = 1,931.96 × 810.54
4. Step 4: Simplify right side
   1,400.04x = 1,565,930.86
5. Step 5: Solve for x
   x = 1,565,930.86/1,400.04
6. Step 6: Final answer
   x = 1,118.49