Finding the Fourth Proportional to 1,347.30, 1,859.31 and 757.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.30 : 1,859.31 = 757.89 : x
2. Step 2: Convert to fraction form
   1,347.30/1,859.31 = 757.89/x
3. Step 3: Cross multiply
   1,347.30x = 1,859.31 × 757.89
4. Step 4: Simplify right side
   1,347.30x = 1,409,152.46
5. Step 5: Solve for x
   x = 1,409,152.46/1,347.30
6. Step 6: Final answer
   x = 1,045.91