Finding the Fourth Proportional to 1,346.63, 1,858.34 and 757.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.63 : 1,858.34 = 757.30 : x
2. Step 2: Convert to fraction form
   1,346.63/1,858.34 = 757.30/x
3. Step 3: Cross multiply
   1,346.63x = 1,858.34 × 757.30
4. Step 4: Simplify right side
   1,346.63x = 1,407,321.61
5. Step 5: Solve for x
   x = 1,407,321.61/1,346.63
6. Step 6: Final answer
   x = 1,045.07