Finding the Fourth Proportional to 1,803.77, 2,488.47 and 1,383.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.77 : 2,488.47 = 1,383.38 : x
2. Step 2: Convert to fraction form
   1,803.77/2,488.47 = 1,383.38/x
3. Step 3: Cross multiply
   1,803.77x = 2,488.47 × 1,383.38
4. Step 4: Simplify right side
   1,803.77x = 3,442,499.11
5. Step 5: Solve for x
   x = 3,442,499.11/1,803.77
6. Step 6: Final answer
   x = 1,908.50