Finding the Fourth Proportional to 1,513.46, 2,089.37 and 1,018.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.46 : 2,089.37 = 1,018.70 : x
2. Step 2: Convert to fraction form
   1,513.46/2,089.37 = 1,018.70/x
3. Step 3: Cross multiply
   1,513.46x = 2,089.37 × 1,018.70
4. Step 4: Simplify right side
   1,513.46x = 2,128,441.22
5. Step 5: Solve for x
   x = 2,128,441.22/1,513.46
6. Step 6: Final answer
   x = 1,406.34