Finding the Fourth Proportional to 1,899.41, 2,845.47 and 1,117.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899.41 : 2,845.47 = 1,117.76 : x
2. Step 2: Convert to fraction form
   1,899.41/2,845.47 = 1,117.76/x
3. Step 3: Cross multiply
   1,899.41x = 2,845.47 × 1,117.76
4. Step 4: Simplify right side
   1,899.41x = 3,180,552.55
5. Step 5: Solve for x
   x = 3,180,552.55/1,899.41
6. Step 6: Final answer
   x = 1,674.49