Finding the Fourth Proportional to 2,748.75, 3,792.61 and 1,553.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.75 : 3,792.61 = 1,553.76 : x
2. Step 2: Convert to fraction form
   2,748.75/3,792.61 = 1,553.76/x
3. Step 3: Cross multiply
   2,748.75x = 3,792.61 × 1,553.76
4. Step 4: Simplify right side
   2,748.75x = 5,892,805.71
5. Step 5: Solve for x
   x = 5,892,805.71/2,748.75
6. Step 6: Final answer
   x = 2,143.81