Finding the Fourth Proportional to 1,947.72, 2,918.96 and 713.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.72 : 2,918.96 = 713.96 : x
2. Step 2: Convert to fraction form
   1,947.72/2,918.96 = 713.96/x
3. Step 3: Cross multiply
   1,947.72x = 2,918.96 × 713.96
4. Step 4: Simplify right side
   1,947.72x = 2,084,034.57
5. Step 5: Solve for x
   x = 2,084,034.57/1,947.72
6. Step 6: Final answer
   x = 1,069.99