Finding the Fourth Proportional to 1,559.78, 2,152.22 and 930.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.78 : 2,152.22 = 930.24 : x
2. Step 2: Convert to fraction form
   1,559.78/2,152.22 = 930.24/x
3. Step 3: Cross multiply
   1,559.78x = 2,152.22 × 930.24
4. Step 4: Simplify right side
   1,559.78x = 2,002,081.13
5. Step 5: Solve for x
   x = 2,002,081.13/1,559.78
6. Step 6: Final answer
   x = 1,283.57