Finding the Fourth Proportional to 2,389.91, 3,298.02 and 1,395.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.91 : 3,298.02 = 1,395.29 : x
2. Step 2: Convert to fraction form
   2,389.91/3,298.02 = 1,395.29/x
3. Step 3: Cross multiply
   2,389.91x = 3,298.02 × 1,395.29
4. Step 4: Simplify right side
   2,389.91x = 4,601,697.34
5. Step 5: Solve for x
   x = 4,601,697.34/2,389.91
6. Step 6: Final answer
   x = 1,925.47