Finding the Fourth Proportional to 1,435.39, 2,152.37 and 510.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.39 : 2,152.37 = 510.67 : x
2. Step 2: Convert to fraction form
   1,435.39/2,152.37 = 510.67/x
3. Step 3: Cross multiply
   1,435.39x = 2,152.37 × 510.67
4. Step 4: Simplify right side
   1,435.39x = 1,099,154.76
5. Step 5: Solve for x
   x = 1,099,154.76/1,435.39
6. Step 6: Final answer
   x = 765.75