Finding the Fourth Proportional to 2,059.60, 3,105.56 and 1,887.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.60 : 3,105.56 = 1,887.38 : x
2. Step 2: Convert to fraction form
   2,059.60/3,105.56 = 1,887.38/x
3. Step 3: Cross multiply
   2,059.60x = 3,105.56 × 1,887.38
4. Step 4: Simplify right side
   2,059.60x = 5,861,361.28
5. Step 5: Solve for x
   x = 5,861,361.28/2,059.60
6. Step 6: Final answer
   x = 2,845.87