Finding the Fourth Proportional to 1,284.86, 1,925.72 and 700.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284.86 : 1,925.72 = 700.18 : x
2. Step 2: Convert to fraction form
   1,284.86/1,925.72 = 700.18/x
3. Step 3: Cross multiply
   1,284.86x = 1,925.72 × 700.18
4. Step 4: Simplify right side
   1,284.86x = 1,348,337.50
5. Step 5: Solve for x
   x = 1,348,337.50/1,284.86
6. Step 6: Final answer
   x = 1,049.40