Finding the Fourth Proportional to 2,547.95, 3,820.49 and 881.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.95 : 3,820.49 = 881.57 : x
2. Step 2: Convert to fraction form
   2,547.95/3,820.49 = 881.57/x
3. Step 3: Cross multiply
   2,547.95x = 3,820.49 × 881.57
4. Step 4: Simplify right side
   2,547.95x = 3,368,005.86
5. Step 5: Solve for x
   x = 3,368,005.86/2,547.95
6. Step 6: Final answer
   x = 1,321.85