Finding the Fourth Proportional to 1,034.83, 1,552.76 and 644.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.83 : 1,552.76 = 644.71 : x
2. Step 2: Convert to fraction form
   1,034.83/1,552.76 = 644.71/x
3. Step 3: Cross multiply
   1,034.83x = 1,552.76 × 644.71
4. Step 4: Simplify right side
   1,034.83x = 1,001,068.91
5. Step 5: Solve for x
   x = 1,001,068.91/1,034.83
6. Step 6: Final answer
   x = 967.38