Finding the Fourth Proportional to 2,994.18, 4,131.72 and 1,815.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,994.18 : 4,131.72 = 1,815.36 : x
2. Step 2: Convert to fraction form
   2,994.18/4,131.72 = 1,815.36/x
3. Step 3: Cross multiply
   2,994.18x = 4,131.72 × 1,815.36
4. Step 4: Simplify right side
   2,994.18x = 7,500,559.22
5. Step 5: Solve for x
   x = 7,500,559.22/2,994.18
6. Step 6: Final answer
   x = 2,505.05