Finding the Fourth Proportional to 2,919.48, 4,381.38 and 2,876.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,919.48 : 4,381.38 = 2,876.28 : x
2. Step 2: Convert to fraction form
   2,919.48/4,381.38 = 2,876.28/x
3. Step 3: Cross multiply
   2,919.48x = 4,381.38 × 2,876.28
4. Step 4: Simplify right side
   2,919.48x = 12,602,075.67
5. Step 5: Solve for x
   x = 12,602,075.67/2,919.48
6. Step 6: Final answer
   x = 4,316.55