Finding the Fourth Proportional to 2,812.58, 3,881.37 and 1,553.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,812.58 : 3,881.37 = 1,553.61 : x
2. Step 2: Convert to fraction form
   2,812.58/3,881.37 = 1,553.61/x
3. Step 3: Cross multiply
   2,812.58x = 3,881.37 × 1,553.61
4. Step 4: Simplify right side
   2,812.58x = 6,030,146.89
5. Step 5: Solve for x
   x = 6,030,146.89/2,812.58
6. Step 6: Final answer
   x = 2,143.99