Finding the Fourth Proportional to 2,100.83, 2,898.47 and 1,353.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.83 : 2,898.47 = 1,353.47 : x
2. Step 2: Convert to fraction form
   2,100.83/2,898.47 = 1,353.47/x
3. Step 3: Cross multiply
   2,100.83x = 2,898.47 × 1,353.47
4. Step 4: Simplify right side
   2,100.83x = 3,922,992.19
5. Step 5: Solve for x
   x = 3,922,992.19/2,100.83
6. Step 6: Final answer
   x = 1,867.35