Finding the Fourth Proportional to 1,355.08, 1,870.07 and 749.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.08 : 1,870.07 = 749.45 : x
2. Step 2: Convert to fraction form
   1,355.08/1,870.07 = 749.45/x
3. Step 3: Cross multiply
   1,355.08x = 1,870.07 × 749.45
4. Step 4: Simplify right side
   1,355.08x = 1,401,523.96
5. Step 5: Solve for x
   x = 1,401,523.96/1,355.08
6. Step 6: Final answer
   x = 1,034.27