Finding the Fourth Proportional to 1,349.89, 1,862.71 and 760.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.89 : 1,862.71 = 760.53 : x
2. Step 2: Convert to fraction form
   1,349.89/1,862.71 = 760.53/x
3. Step 3: Cross multiply
   1,349.89x = 1,862.71 × 760.53
4. Step 4: Simplify right side
   1,349.89x = 1,416,646.84
5. Step 5: Solve for x
   x = 1,416,646.84/1,349.89
6. Step 6: Final answer
   x = 1,049.45