Finding the Fourth Proportional to 1,061.34, 1,592.09 and 403.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.34 : 1,592.09 = 403.53 : x
2. Step 2: Convert to fraction form
   1,061.34/1,592.09 = 403.53/x
3. Step 3: Cross multiply
   1,061.34x = 1,592.09 × 403.53
4. Step 4: Simplify right side
   1,061.34x = 642,457.59
5. Step 5: Solve for x
   x = 642,457.59/1,061.34
6. Step 6: Final answer
   x = 605.33