Finding the Fourth Proportional to 1,059.07, 1,461.60 and 611.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.07 : 1,461.60 = 611.02 : x
2. Step 2: Convert to fraction form
   1,059.07/1,461.60 = 611.02/x
3. Step 3: Cross multiply
   1,059.07x = 1,461.60 × 611.02
4. Step 4: Simplify right side
   1,059.07x = 893,061.89
5. Step 5: Solve for x
   x = 893,061.89/1,059.07
6. Step 6: Final answer
   x = 843.25