Finding the Fourth Proportional to 1,803.59, 2,490.37 and 1,383.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.59 : 2,490.37 = 1,383.28 : x
2. Step 2: Convert to fraction form
   1,803.59/2,490.37 = 1,383.28/x
3. Step 3: Cross multiply
   1,803.59x = 2,490.37 × 1,383.28
4. Step 4: Simplify right side
   1,803.59x = 3,444,875.56
5. Step 5: Solve for x
   x = 3,444,875.56/1,803.59
6. Step 6: Final answer
   x = 1,910.01