Finding the Fourth Proportional to 2,086.16, 2,883.83 and 1,670.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.16 : 2,883.83 = 1,670.63 : x
2. Step 2: Convert to fraction form
   2,086.16/2,883.83 = 1,670.63/x
3. Step 3: Cross multiply
   2,086.16x = 2,883.83 × 1,670.63
4. Step 4: Simplify right side
   2,086.16x = 4,817,811.77
5. Step 5: Solve for x
   x = 4,817,811.77/2,086.16
6. Step 6: Final answer
   x = 2,309.41