Finding the Fourth Proportional to 2,152.68, 2,968.76 and 1,820.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.68 : 2,968.76 = 1,820.76 : x
2. Step 2: Convert to fraction form
   2,152.68/2,968.76 = 1,820.76/x
3. Step 3: Cross multiply
   2,152.68x = 2,968.76 × 1,820.76
4. Step 4: Simplify right side
   2,152.68x = 5,405,399.46
5. Step 5: Solve for x
   x = 5,405,399.46/2,152.68
6. Step 6: Final answer
   x = 2,511.01