Finding the Fourth Proportional to 2,298.74, 3,172.50 and 1,354.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.74 : 3,172.50 = 1,354.83 : x
2. Step 2: Convert to fraction form
   2,298.74/3,172.50 = 1,354.83/x
3. Step 3: Cross multiply
   2,298.74x = 3,172.50 × 1,354.83
4. Step 4: Simplify right side
   2,298.74x = 4,298,198.18
5. Step 5: Solve for x
   x = 4,298,198.18/2,298.74
6. Step 6: Final answer
   x = 1,869.81