Finding the Fourth Proportional to 2,117.45, 3,174.57 and 1,656.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.45 : 3,174.57 = 1,656.20 : x
2. Step 2: Convert to fraction form
   2,117.45/3,174.57 = 1,656.20/x
3. Step 3: Cross multiply
   2,117.45x = 3,174.57 × 1,656.20
4. Step 4: Simplify right side
   2,117.45x = 5,257,722.83
5. Step 5: Solve for x
   x = 5,257,722.83/2,117.45
6. Step 6: Final answer
   x = 2,483.04