Finding the Fourth Proportional to 1,775.73, 2,659.72 and 1,621.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,775.73 : 2,659.72 = 1,621.02 : x
2. Step 2: Convert to fraction form
   1,775.73/2,659.72 = 1,621.02/x
3. Step 3: Cross multiply
   1,775.73x = 2,659.72 × 1,621.02
4. Step 4: Simplify right side
   1,775.73x = 4,311,459.31
5. Step 5: Solve for x
   x = 4,311,459.31/1,775.73
6. Step 6: Final answer
   x = 2,427.99