Finding the Fourth Proportional to 1,868.08, 2,801.72 and 569.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.08 : 2,801.72 = 569.12 : x
2. Step 2: Convert to fraction form
   1,868.08/2,801.72 = 569.12/x
3. Step 3: Cross multiply
   1,868.08x = 2,801.72 × 569.12
4. Step 4: Simplify right side
   1,868.08x = 1,594,514.89
5. Step 5: Solve for x
   x = 1,594,514.89/1,868.08
6. Step 6: Final answer
   x = 853.56