Finding the Fourth Proportional to 1,578.98, 2,370.53 and 1,061.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578.98 : 2,370.53 = 1,061.30 : x
2. Step 2: Convert to fraction form
   1,578.98/2,370.53 = 1,061.30/x
3. Step 3: Cross multiply
   1,578.98x = 2,370.53 × 1,061.30
4. Step 4: Simplify right side
   1,578.98x = 2,515,843.49
5. Step 5: Solve for x
   x = 2,515,843.49/1,578.98
6. Step 6: Final answer
   x = 1,593.33