Finding the Fourth Proportional to 1,925.12, 2,649.81 and 1,426.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.12 : 2,649.81 = 1,426.90 : x
2. Step 2: Convert to fraction form
   1,925.12/2,649.81 = 1,426.90/x
3. Step 3: Cross multiply
   1,925.12x = 2,649.81 × 1,426.90
4. Step 4: Simplify right side
   1,925.12x = 3,781,013.89
5. Step 5: Solve for x
   x = 3,781,013.89/1,925.12
6. Step 6: Final answer
   x = 1,964.04