Finding the Fourth Proportional to 1,803.06, 2,488.98 and 1,243.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.06 : 2,488.98 = 1,243.32 : x
2. Step 2: Convert to fraction form
   1,803.06/2,488.98 = 1,243.32/x
3. Step 3: Cross multiply
   1,803.06x = 2,488.98 × 1,243.32
4. Step 4: Simplify right side
   1,803.06x = 3,094,598.61
5. Step 5: Solve for x
   x = 3,094,598.61/1,803.06
6. Step 6: Final answer
   x = 1,716.30