Finding the Fourth Proportional to 1,904.38, 2,854.47 and 1,245.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,904.38 : 2,854.47 = 1,245.98 : x
2. Step 2: Convert to fraction form
   1,904.38/2,854.47 = 1,245.98/x
3. Step 3: Cross multiply
   1,904.38x = 2,854.47 × 1,245.98
4. Step 4: Simplify right side
   1,904.38x = 3,556,619.67
5. Step 5: Solve for x
   x = 3,556,619.67/1,904.38
6. Step 6: Final answer
   x = 1,867.60