Finding the Fourth Proportional to 1,947.83, 2,687.87 and 1,201.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.83 : 2,687.87 = 1,201.51 : x
2. Step 2: Convert to fraction form
   1,947.83/2,687.87 = 1,201.51/x
3. Step 3: Cross multiply
   1,947.83x = 2,687.87 × 1,201.51
4. Step 4: Simplify right side
   1,947.83x = 3,229,483.24
5. Step 5: Solve for x
   x = 3,229,483.24/1,947.83
6. Step 6: Final answer
   x = 1,657.99