Finding the Fourth Proportional to 2,175.00, 3,002.06 and 1,378.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.00 : 3,002.06 = 1,378.80 : x
2. Step 2: Convert to fraction form
   2,175.00/3,002.06 = 1,378.80/x
3. Step 3: Cross multiply
   2,175.00x = 3,002.06 × 1,378.80
4. Step 4: Simplify right side
   2,175.00x = 4,139,226.61
5. Step 5: Solve for x
   x = 4,139,226.61/2,175.00
6. Step 6: Final answer
   x = 1,903.09