Finding the Fourth Proportional to 2,130.37, 3,180.61 and 1,802.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.37 : 3,180.61 = 1,802.41 : x
2. Step 2: Convert to fraction form
   2,130.37/3,180.61 = 1,802.41/x
3. Step 3: Cross multiply
   2,130.37x = 3,180.61 × 1,802.41
4. Step 4: Simplify right side
   2,130.37x = 5,732,767.78
5. Step 5: Solve for x
   x = 5,732,767.78/2,130.37
6. Step 6: Final answer
   x = 2,690.97