Finding the Fourth Proportional to 1,561.02, 2,338.83 and 1,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.02 : 2,338.83 = 1,012.56 : x
2. Step 2: Convert to fraction form
   1,561.02/2,338.83 = 1,012.56/x
3. Step 3: Cross multiply
   1,561.02x = 2,338.83 × 1,012.56
4. Step 4: Simplify right side
   1,561.02x = 2,368,205.70
5. Step 5: Solve for x
   x = 2,368,205.70/1,561.02
6. Step 6: Final answer
   x = 1,517.09