Finding the Fourth Proportional to 1,801.42, 2,699.78 and 923.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.42 : 2,699.78 = 923.18 : x
2. Step 2: Convert to fraction form
   1,801.42/2,699.78 = 923.18/x
3. Step 3: Cross multiply
   1,801.42x = 2,699.78 × 923.18
4. Step 4: Simplify right side
   1,801.42x = 2,492,380.59
5. Step 5: Solve for x
   x = 2,492,380.59/1,801.42
6. Step 6: Final answer
   x = 1,383.56