Finding the Fourth Proportional to 1,947.40, 2,917.86 and 1,369.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.40 : 2,917.86 = 1,369.06 : x
2. Step 2: Convert to fraction form
   1,947.40/2,917.86 = 1,369.06/x
3. Step 3: Cross multiply
   1,947.40x = 2,917.86 × 1,369.06
4. Step 4: Simplify right side
   1,947.40x = 3,994,725.41
5. Step 5: Solve for x
   x = 3,994,725.41/1,947.40
6. Step 6: Final answer
   x = 2,051.31