Finding the Fourth Proportional to 2,802.79, 4,203.89 and 1,242.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.79 : 4,203.89 = 1,242.82 : x
2. Step 2: Convert to fraction form
   2,802.79/4,203.89 = 1,242.82/x
3. Step 3: Cross multiply
   2,802.79x = 4,203.89 × 1,242.82
4. Step 4: Simplify right side
   2,802.79x = 5,224,651.34
5. Step 5: Solve for x
   x = 5,224,651.34/2,802.79
6. Step 6: Final answer
   x = 1,864.09