Finding the Fourth Proportional to 1,900.30, 2,621.81 and 1,060.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.30 : 2,621.81 = 1,060.87 : x
2. Step 2: Convert to fraction form
   1,900.30/2,621.81 = 1,060.87/x
3. Step 3: Cross multiply
   1,900.30x = 2,621.81 × 1,060.87
4. Step 4: Simplify right side
   1,900.30x = 2,781,399.57
5. Step 5: Solve for x
   x = 2,781,399.57/1,900.30
6. Step 6: Final answer
   x = 1,463.66