Finding the Fourth Proportional to 1,255.98, 1,882.24 and 947.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255.98 : 1,882.24 = 947.56 : x
2. Step 2: Convert to fraction form
   1,255.98/1,882.24 = 947.56/x
3. Step 3: Cross multiply
   1,255.98x = 1,882.24 × 947.56
4. Step 4: Simplify right side
   1,255.98x = 1,783,535.33
5. Step 5: Solve for x
   x = 1,783,535.33/1,255.98
6. Step 6: Final answer
   x = 1,420.03