Finding the Fourth Proportional to 2,018.30, 3,035.55 and 1,807.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.30 : 3,035.55 = 1,807.70 : x
2. Step 2: Convert to fraction form
   2,018.30/3,035.55 = 1,807.70/x
3. Step 3: Cross multiply
   2,018.30x = 3,035.55 × 1,807.70
4. Step 4: Simplify right side
   2,018.30x = 5,487,363.74
5. Step 5: Solve for x
   x = 5,487,363.74/2,018.30
6. Step 6: Final answer
   x = 2,718.80