Finding the Fourth Proportional to 2,213.77, 3,057.69 and 1,656.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.77 : 3,057.69 = 1,656.70 : x
2. Step 2: Convert to fraction form
   2,213.77/3,057.69 = 1,656.70/x
3. Step 3: Cross multiply
   2,213.77x = 3,057.69 × 1,656.70
4. Step 4: Simplify right side
   2,213.77x = 5,065,675.02
5. Step 5: Solve for x
   x = 5,065,675.02/2,213.77
6. Step 6: Final answer
   x = 2,288.26