Finding the Fourth Proportional to 2,547.12, 3,820.72 and 1,160.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.12 : 3,820.72 = 1,160.40 : x
2. Step 2: Convert to fraction form
   2,547.12/3,820.72 = 1,160.40/x
3. Step 3: Cross multiply
   2,547.12x = 3,820.72 × 1,160.40
4. Step 4: Simplify right side
   2,547.12x = 4,433,563.49
5. Step 5: Solve for x
   x = 4,433,563.49/2,547.12
6. Step 6: Final answer
   x = 1,740.62