Finding the Fourth Proportional to 1,569.47, 2,164.82 and 1,010.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,569.47 : 2,164.82 = 1,010.65 : x
2. Step 2: Convert to fraction form
   1,569.47/2,164.82 = 1,010.65/x
3. Step 3: Cross multiply
   1,569.47x = 2,164.82 × 1,010.65
4. Step 4: Simplify right side
   1,569.47x = 2,187,875.33
5. Step 5: Solve for x
   x = 2,187,875.33/1,569.47
6. Step 6: Final answer
   x = 1,394.02