Finding the Fourth Proportional to 2,748.59, 3,792.92 and 1,553.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.59 : 3,792.92 = 1,553.60 : x
2. Step 2: Convert to fraction form
   2,748.59/3,792.92 = 1,553.60/x
3. Step 3: Cross multiply
   2,748.59x = 3,792.92 × 1,553.60
4. Step 4: Simplify right side
   2,748.59x = 5,892,680.51
5. Step 5: Solve for x
   x = 5,892,680.51/2,748.59
6. Step 6: Final answer
   x = 2,143.89