Finding the Fourth Proportional to 1,844.77, 2,546.71 and 1,216.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,844.77 : 2,546.71 = 1,216.21 : x
2. Step 2: Convert to fraction form
   1,844.77/2,546.71 = 1,216.21/x
3. Step 3: Cross multiply
   1,844.77x = 2,546.71 × 1,216.21
4. Step 4: Simplify right side
   1,844.77x = 3,097,315.35
5. Step 5: Solve for x
   x = 3,097,315.35/1,844.77
6. Step 6: Final answer
   x = 1,678.98