Finding the Fourth Proportional to 1,769.69, 2,442.15 and 983.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,769.69 : 2,442.15 = 983.72 : x
2. Step 2: Convert to fraction form
   1,769.69/2,442.15 = 983.72/x
3. Step 3: Cross multiply
   1,769.69x = 2,442.15 × 983.72
4. Step 4: Simplify right side
   1,769.69x = 2,402,379.59
5. Step 5: Solve for x
   x = 2,402,379.59/1,769.69
6. Step 6: Final answer
   x = 1,357.52