Finding the Fourth Proportional to 1,947.46, 2,918.52 and 1,253.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.46 : 2,918.52 = 1,253.74 : x
2. Step 2: Convert to fraction form
   1,947.46/2,918.52 = 1,253.74/x
3. Step 3: Cross multiply
   1,947.46x = 2,918.52 × 1,253.74
4. Step 4: Simplify right side
   1,947.46x = 3,659,065.26
5. Step 5: Solve for x
   x = 3,659,065.26/1,947.46
6. Step 6: Final answer
   x = 1,878.89