Finding the Fourth Proportional to 1,158.33, 1,598.58 and 764.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.33 : 1,598.58 = 764.67 : x
2. Step 2: Convert to fraction form
   1,158.33/1,598.58 = 764.67/x
3. Step 3: Cross multiply
   1,158.33x = 1,598.58 × 764.67
4. Step 4: Simplify right side
   1,158.33x = 1,222,386.17
5. Step 5: Solve for x
   x = 1,222,386.17/1,158.33
6. Step 6: Final answer
   x = 1,055.30