Finding the Fourth Proportional to 2,390.10, 3,298.51 and 1,395.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.10 : 3,298.51 = 1,395.16 : x
2. Step 2: Convert to fraction form
   2,390.10/3,298.51 = 1,395.16/x
3. Step 3: Cross multiply
   2,390.10x = 3,298.51 × 1,395.16
4. Step 4: Simplify right side
   2,390.10x = 4,601,949.21
5. Step 5: Solve for x
   x = 4,601,949.21/2,390.10
6. Step 6: Final answer
   x = 1,925.42