Finding the Fourth Proportional to 2,435.16, 3,359.70 and 1,386.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,435.16 : 3,359.70 = 1,386.48 : x
2. Step 2: Convert to fraction form
   2,435.16/3,359.70 = 1,386.48/x
3. Step 3: Cross multiply
   2,435.16x = 3,359.70 × 1,386.48
4. Step 4: Simplify right side
   2,435.16x = 4,658,156.86
5. Step 5: Solve for x
   x = 4,658,156.86/2,435.16
6. Step 6: Final answer
   x = 1,912.88