Finding the Fourth Proportional to 1,072.55, 1,610.89 and 951.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.55 : 1,610.89 = 951.86 : x
2. Step 2: Convert to fraction form
   1,072.55/1,610.89 = 951.86/x
3. Step 3: Cross multiply
   1,072.55x = 1,610.89 × 951.86
4. Step 4: Simplify right side
   1,072.55x = 1,533,341.76
5. Step 5: Solve for x
   x = 1,533,341.76/1,072.55
6. Step 6: Final answer
   x = 1,429.62