Finding the Fourth Proportional to 2,510.96, 3,465.30 and 1,392.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.96 : 3,465.30 = 1,392.06 : x
2. Step 2: Convert to fraction form
   2,510.96/3,465.30 = 1,392.06/x
3. Step 3: Cross multiply
   2,510.96x = 3,465.30 × 1,392.06
4. Step 4: Simplify right side
   2,510.96x = 4,823,905.52
5. Step 5: Solve for x
   x = 4,823,905.52/2,510.96
6. Step 6: Final answer
   x = 1,921.14