Finding the Fourth Proportional to 1,563.15, 2,343.57 and 946.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,563.15 : 2,343.57 = 946.72 : x
2. Step 2: Convert to fraction form
   1,563.15/2,343.57 = 946.72/x
3. Step 3: Cross multiply
   1,563.15x = 2,343.57 × 946.72
4. Step 4: Simplify right side
   1,563.15x = 2,218,704.59
5. Step 5: Solve for x
   x = 2,218,704.59/1,563.15
6. Step 6: Final answer
   x = 1,419.38