Finding the Fourth Proportional to 2,216.90, 3,056.74 and 1,656.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.90 : 3,056.74 = 1,656.38 : x
2. Step 2: Convert to fraction form
   2,216.90/3,056.74 = 1,656.38/x
3. Step 3: Cross multiply
   2,216.90x = 3,056.74 × 1,656.38
4. Step 4: Simplify right side
   2,216.90x = 5,063,109.31
5. Step 5: Solve for x
   x = 5,063,109.31/2,216.90
6. Step 6: Final answer
   x = 2,283.87