Finding the Fourth Proportional to 1,803.84, 2,488.72 and 1,424.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.84 : 2,488.72 = 1,424.53 : x
2. Step 2: Convert to fraction form
   1,803.84/2,488.72 = 1,424.53/x
3. Step 3: Cross multiply
   1,803.84x = 2,488.72 × 1,424.53
4. Step 4: Simplify right side
   1,803.84x = 3,545,256.30
5. Step 5: Solve for x
   x = 3,545,256.30/1,803.84
6. Step 6: Final answer
   x = 1,965.39