Finding the Fourth Proportional to 1,047.51, 1,445.76 and 605.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.51 : 1,445.76 = 605.61 : x
2. Step 2: Convert to fraction form
   1,047.51/1,445.76 = 605.61/x
3. Step 3: Cross multiply
   1,047.51x = 1,445.76 × 605.61
4. Step 4: Simplify right side
   1,047.51x = 875,566.71
5. Step 5: Solve for x
   x = 875,566.71/1,047.51
6. Step 6: Final answer
   x = 835.86