Finding the Fourth Proportional to 1,400.94, 1,933.29 and 811.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.94 : 1,933.29 = 811.62 : x
2. Step 2: Convert to fraction form
   1,400.94/1,933.29 = 811.62/x
3. Step 3: Cross multiply
   1,400.94x = 1,933.29 × 811.62
4. Step 4: Simplify right side
   1,400.94x = 1,569,096.83
5. Step 5: Solve for x
   x = 1,569,096.83/1,400.94
6. Step 6: Final answer
   x = 1,120.03