Finding the Fourth Proportional to 1,333.03, 1,837.61 and 860.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.03 : 1,837.61 = 860.89 : x
2. Step 2: Convert to fraction form
   1,333.03/1,837.61 = 860.89/x
3. Step 3: Cross multiply
   1,333.03x = 1,837.61 × 860.89
4. Step 4: Simplify right side
   1,333.03x = 1,581,975.77
5. Step 5: Solve for x
   x = 1,581,975.77/1,333.03
6. Step 6: Final answer
   x = 1,186.75