Finding the Fourth Proportional to 1,182.78, 1,774.62 and 1,046.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.78 : 1,774.62 = 1,046.99 : x
2. Step 2: Convert to fraction form
   1,182.78/1,774.62 = 1,046.99/x
3. Step 3: Cross multiply
   1,182.78x = 1,774.62 × 1,046.99
4. Step 4: Simplify right side
   1,182.78x = 1,858,013.83
5. Step 5: Solve for x
   x = 1,858,013.83/1,182.78
6. Step 6: Final answer
   x = 1,570.89