Finding the Fourth Proportional to 2,298.61, 3,173.25 and 1,556.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.61 : 3,173.25 = 1,556.47 : x
2. Step 2: Convert to fraction form
   2,298.61/3,173.25 = 1,556.47/x
3. Step 3: Cross multiply
   2,298.61x = 3,173.25 × 1,556.47
4. Step 4: Simplify right side
   2,298.61x = 4,939,068.43
5. Step 5: Solve for x
   x = 4,939,068.43/2,298.61
6. Step 6: Final answer
   x = 2,148.72