Finding the Fourth Proportional to 2,298.61, 3,172.01 and 1,354.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.61 : 3,172.01 = 1,354.19 : x
2. Step 2: Convert to fraction form
   2,298.61/3,172.01 = 1,354.19/x
3. Step 3: Cross multiply
   2,298.61x = 3,172.01 × 1,354.19
4. Step 4: Simplify right side
   2,298.61x = 4,295,504.22
5. Step 5: Solve for x
   x = 4,295,504.22/2,298.61
6. Step 6: Final answer
   x = 1,868.74