Finding the Fourth Proportional to 1,810.48, 2,494.58 and 1,219.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.48 : 2,494.58 = 1,219.98 : x
2. Step 2: Convert to fraction form
   1,810.48/2,494.58 = 1,219.98/x
3. Step 3: Cross multiply
   1,810.48x = 2,494.58 × 1,219.98
4. Step 4: Simplify right side
   1,810.48x = 3,043,337.71
5. Step 5: Solve for x
   x = 3,043,337.71/1,810.48
6. Step 6: Final answer
   x = 1,680.96