Finding the Fourth Proportional to 1,559.12, 2,333.90 and 1,010.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.12 : 2,333.90 = 1,010.20 : x
2. Step 2: Convert to fraction form
   1,559.12/2,333.90 = 1,010.20/x
3. Step 3: Cross multiply
   1,559.12x = 2,333.90 × 1,010.20
4. Step 4: Simplify right side
   1,559.12x = 2,357,705.78
5. Step 5: Solve for x
   x = 2,357,705.78/1,559.12
6. Step 6: Final answer
   x = 1,512.20