Finding the Fourth Proportional to 1,219.37, 1,825.94 and 670.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219.37 : 1,825.94 = 670.96 : x
2. Step 2: Convert to fraction form
   1,219.37/1,825.94 = 670.96/x
3. Step 3: Cross multiply
   1,219.37x = 1,825.94 × 670.96
4. Step 4: Simplify right side
   1,219.37x = 1,225,123.57
5. Step 5: Solve for x
   x = 1,225,123.57/1,219.37
6. Step 6: Final answer
   x = 1,004.72