Finding the Fourth Proportional to 2,970.87, 4,445.94 and 1,800.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,970.87 : 4,445.94 = 1,800.15 : x
2. Step 2: Convert to fraction form
   2,970.87/4,445.94 = 1,800.15/x
3. Step 3: Cross multiply
   2,970.87x = 4,445.94 × 1,800.15
4. Step 4: Simplify right side
   2,970.87x = 8,003,358.89
5. Step 5: Solve for x
   x = 8,003,358.89/2,970.87
6. Step 6: Final answer
   x = 2,693.94