Finding the Fourth Proportional to 1,158.93, 1,598.76 and 765.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.93 : 1,598.76 = 765.27 : x
2. Step 2: Convert to fraction form
   1,158.93/1,598.76 = 765.27/x
3. Step 3: Cross multiply
   1,158.93x = 1,598.76 × 765.27
4. Step 4: Simplify right side
   1,158.93x = 1,223,483.07
5. Step 5: Solve for x
   x = 1,223,483.07/1,158.93
6. Step 6: Final answer
   x = 1,055.70