Finding the Fourth Proportional to 1,569.82, 2,354.72 and 800.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,569.82 : 2,354.72 = 800.86 : x
2. Step 2: Convert to fraction form
   1,569.82/2,354.72 = 800.86/x
3. Step 3: Cross multiply
   1,569.82x = 2,354.72 × 800.86
4. Step 4: Simplify right side
   1,569.82x = 1,885,801.06
5. Step 5: Solve for x
   x = 1,885,801.06/1,569.82
6. Step 6: Final answer
   x = 1,201.28