Finding the Fourth Proportional to 1,359.30, 1,875.84 and 761.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.30 : 1,875.84 = 761.79 : x
2. Step 2: Convert to fraction form
   1,359.30/1,875.84 = 761.79/x
3. Step 3: Cross multiply
   1,359.30x = 1,875.84 × 761.79
4. Step 4: Simplify right side
   1,359.30x = 1,428,996.15
5. Step 5: Solve for x
   x = 1,428,996.15/1,359.30
6. Step 6: Final answer
   x = 1,051.27