Finding the Fourth Proportional to 2,848.17, 4,272.83 and 998.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,848.17 : 4,272.83 = 998.79 : x
2. Step 2: Convert to fraction form
   2,848.17/4,272.83 = 998.79/x
3. Step 3: Cross multiply
   2,848.17x = 4,272.83 × 998.79
4. Step 4: Simplify right side
   2,848.17x = 4,267,642.60
5. Step 5: Solve for x
   x = 4,267,642.60/2,848.17
6. Step 6: Final answer
   x = 1,498.38