Finding the Fourth Proportional to 2,043.30, 2,821.32 and 1,807.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.30 : 2,821.32 = 1,807.56 : x
2. Step 2: Convert to fraction form
   2,043.30/2,821.32 = 1,807.56/x
3. Step 3: Cross multiply
   2,043.30x = 2,821.32 × 1,807.56
4. Step 4: Simplify right side
   2,043.30x = 5,099,705.18
5. Step 5: Solve for x
   x = 5,099,705.18/2,043.30
6. Step 6: Final answer
   x = 2,495.82