Finding the Fourth Proportional to 1,351.09, 1,864.56 and 761.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.09 : 1,864.56 = 761.59 : x
2. Step 2: Convert to fraction form
   1,351.09/1,864.56 = 761.59/x
3. Step 3: Cross multiply
   1,351.09x = 1,864.56 × 761.59
4. Step 4: Simplify right side
   1,351.09x = 1,420,030.25
5. Step 5: Solve for x
   x = 1,420,030.25/1,351.09
6. Step 6: Final answer
   x = 1,051.03