Finding the Fourth Proportional to 2,018.34, 2,784.06 and 1,319.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.34 : 2,784.06 = 1,319.70 : x
2. Step 2: Convert to fraction form
   2,018.34/2,784.06 = 1,319.70/x
3. Step 3: Cross multiply
   2,018.34x = 2,784.06 × 1,319.70
4. Step 4: Simplify right side
   2,018.34x = 3,674,123.98
5. Step 5: Solve for x
   x = 3,674,123.98/2,018.34
6. Step 6: Final answer
   x = 1,820.37