Finding the Fourth Proportional to 2,120.51, 2,927.41 and 1,647.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.51 : 2,927.41 = 1,647.34 : x
2. Step 2: Convert to fraction form
   2,120.51/2,927.41 = 1,647.34/x
3. Step 3: Cross multiply
   2,120.51x = 2,927.41 × 1,647.34
4. Step 4: Simplify right side
   2,120.51x = 4,822,453.89
5. Step 5: Solve for x
   x = 4,822,453.89/2,120.51
6. Step 6: Final answer
   x = 2,274.19