Finding the Fourth Proportional to 1,610.74, 2,411.70 and 1,061.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.74 : 2,411.70 = 1,061.20 : x
2. Step 2: Convert to fraction form
   1,610.74/2,411.70 = 1,061.20/x
3. Step 3: Cross multiply
   1,610.74x = 2,411.70 × 1,061.20
4. Step 4: Simplify right side
   1,610.74x = 2,559,296.04
5. Step 5: Solve for x
   x = 2,559,296.04/1,610.74
6. Step 6: Final answer
   x = 1,588.89