Finding the Fourth Proportional to 2,943.15, 4,415.59 and 1,187.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,943.15 : 4,415.59 = 1,187.25 : x
2. Step 2: Convert to fraction form
   2,943.15/4,415.59 = 1,187.25/x
3. Step 3: Cross multiply
   2,943.15x = 4,415.59 × 1,187.25
4. Step 4: Simplify right side
   2,943.15x = 5,242,406.26
5. Step 5: Solve for x
   x = 5,242,406.26/2,943.15
6. Step 6: Final answer
   x = 1,781.22