Finding the Fourth Proportional to 1,847.39, 2,768.78 and 1,187.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,847.39 : 2,768.78 = 1,187.51 : x
2. Step 2: Convert to fraction form
   1,847.39/2,768.78 = 1,187.51/x
3. Step 3: Cross multiply
   1,847.39x = 2,768.78 × 1,187.51
4. Step 4: Simplify right side
   1,847.39x = 3,287,963.83
5. Step 5: Solve for x
   x = 3,287,963.83/1,847.39
6. Step 6: Final answer
   x = 1,779.79