Finding the Fourth Proportional to 9,802.96, 14,705.52 and 2,878

Step by Step Solution

1. Step 1: Write the proportion equation
   9,802.96 : 14,705.52 = 2,878 : x
2. Step 2: Convert to fraction form
   9,802.96/14,705.52 = 2,878/x
3. Step 3: Cross multiply
   9,802.96x = 14,705.52 × 2,878
4. Step 4: Simplify right side
   9,802.96x = 42,322,486.56
5. Step 5: Solve for x
   x = 42,322,486.56/9,802.96
6. Step 6: Final answer
   x = 4,317.32