Finding the Fourth Proportional to 2,678.48, 4,019.52 and 947.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.48 : 4,019.52 = 947.08 : x
2. Step 2: Convert to fraction form
   2,678.48/4,019.52 = 947.08/x
3. Step 3: Cross multiply
   2,678.48x = 4,019.52 × 947.08
4. Step 4: Simplify right side
   2,678.48x = 3,806,807.00
5. Step 5: Solve for x
   x = 3,806,807.00/2,678.48
6. Step 6: Final answer
   x = 1,421.26