Finding the Fourth Proportional to 1,899.69, 2,846.40 and 1,167.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899.69 : 2,846.40 = 1,167.72 : x
2. Step 2: Convert to fraction form
   1,899.69/2,846.40 = 1,167.72/x
3. Step 3: Cross multiply
   1,899.69x = 2,846.40 × 1,167.72
4. Step 4: Simplify right side
   1,899.69x = 3,323,798.21
5. Step 5: Solve for x
   x = 3,323,798.21/1,899.69
6. Step 6: Final answer
   x = 1,749.65