Finding the Fourth Proportional to 1,936.76, 2,903.90 and 1,071.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,936.76 : 2,903.90 = 1,071.68 : x
2. Step 2: Convert to fraction form
   1,936.76/2,903.90 = 1,071.68/x
3. Step 3: Cross multiply
   1,936.76x = 2,903.90 × 1,071.68
4. Step 4: Simplify right side
   1,936.76x = 3,112,051.55
5. Step 5: Solve for x
   x = 3,112,051.55/1,936.76
6. Step 6: Final answer
   x = 1,606.83