Finding the Fourth Proportional to 1,983.96, 2,739.15 and 1,860.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.96 : 2,739.15 = 1,860.03 : x
2. Step 2: Convert to fraction form
   1,983.96/2,739.15 = 1,860.03/x
3. Step 3: Cross multiply
   1,983.96x = 2,739.15 × 1,860.03
4. Step 4: Simplify right side
   1,983.96x = 5,094,901.17
5. Step 5: Solve for x
   x = 5,094,901.17/1,983.96
6. Step 6: Final answer
   x = 2,568.05