Finding the Fourth Proportional to 1,061.78, 1,593.76 and 753.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.78 : 1,593.76 = 753.98 : x
2. Step 2: Convert to fraction form
   1,061.78/1,593.76 = 753.98/x
3. Step 3: Cross multiply
   1,061.78x = 1,593.76 × 753.98
4. Step 4: Simplify right side
   1,061.78x = 1,201,663.16
5. Step 5: Solve for x
   x = 1,201,663.16/1,061.78
6. Step 6: Final answer
   x = 1,131.74