Finding the Fourth Proportional to 2,742.17, 3,783.89 and 1,623.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,742.17 : 3,783.89 = 1,623.15 : x
2. Step 2: Convert to fraction form
   2,742.17/3,783.89 = 1,623.15/x
3. Step 3: Cross multiply
   2,742.17x = 3,783.89 × 1,623.15
4. Step 4: Simplify right side
   2,742.17x = 6,141,821.05
5. Step 5: Solve for x
   x = 6,141,821.05/2,742.17
6. Step 6: Final answer
   x = 2,239.77