Finding the Fourth Proportional to 2,323.91, 3,485.33 and 1,387.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.91 : 3,485.33 = 1,387.12 : x
2. Step 2: Convert to fraction form
   2,323.91/3,485.33 = 1,387.12/x
3. Step 3: Cross multiply
   2,323.91x = 3,485.33 × 1,387.12
4. Step 4: Simplify right side
   2,323.91x = 4,834,570.95
5. Step 5: Solve for x
   x = 4,834,570.95/2,323.91
6. Step 6: Final answer
   x = 2,080.36