Finding the Fourth Proportional to 1,001.49, 1,499.82 and 561.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,001.49 : 1,499.82 = 561.69 : x
2. Step 2: Convert to fraction form
   1,001.49/1,499.82 = 561.69/x
3. Step 3: Cross multiply
   1,001.49x = 1,499.82 × 561.69
4. Step 4: Simplify right side
   1,001.49x = 842,433.90
5. Step 5: Solve for x
   x = 842,433.90/1,001.49
6. Step 6: Final answer
   x = 841.18