Finding the Fourth Proportional to 2,796.86, 4,192.86 and 1,407.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,796.86 : 4,192.86 = 1,407.72 : x
2. Step 2: Convert to fraction form
   2,796.86/4,192.86 = 1,407.72/x
3. Step 3: Cross multiply
   2,796.86x = 4,192.86 × 1,407.72
4. Step 4: Simplify right side
   2,796.86x = 5,902,372.88
5. Step 5: Solve for x
   x = 5,902,372.88/2,796.86
6. Step 6: Final answer
   x = 2,110.36