Finding the Fourth Proportional to 1,810.37, 2,500.35 and 1,219.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.37 : 2,500.35 = 1,219.88 : x
2. Step 2: Convert to fraction form
   1,810.37/2,500.35 = 1,219.88/x
3. Step 3: Cross multiply
   1,810.37x = 2,500.35 × 1,219.88
4. Step 4: Simplify right side
   1,810.37x = 3,050,114.46
5. Step 5: Solve for x
   x = 3,050,114.46/1,810.37
6. Step 6: Final answer
   x = 1,684.81