Finding the Fourth Proportional to 2,547.89, 3,822.21 and 1,161.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.89 : 3,822.21 = 1,161.59 : x
2. Step 2: Convert to fraction form
   2,547.89/3,822.21 = 1,161.59/x
3. Step 3: Cross multiply
   2,547.89x = 3,822.21 × 1,161.59
4. Step 4: Simplify right side
   2,547.89x = 4,439,840.91
5. Step 5: Solve for x
   x = 4,439,840.91/2,547.89
6. Step 6: Final answer
   x = 1,742.56