Finding the Fourth Proportional to 1,351.59, 1,865.19 and 762.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.59 : 1,865.19 = 762.12 : x
2. Step 2: Convert to fraction form
   1,351.59/1,865.19 = 762.12/x
3. Step 3: Cross multiply
   1,351.59x = 1,865.19 × 762.12
4. Step 4: Simplify right side
   1,351.59x = 1,421,498.60
5. Step 5: Solve for x
   x = 1,421,498.60/1,351.59
6. Step 6: Final answer
   x = 1,051.72