Finding the Fourth Proportional to 1,377.02, 2,066.51 and 760.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.02 : 2,066.51 = 760.56 : x
2. Step 2: Convert to fraction form
   1,377.02/2,066.51 = 760.56/x
3. Step 3: Cross multiply
   1,377.02x = 2,066.51 × 760.56
4. Step 4: Simplify right side
   1,377.02x = 1,571,701.04
5. Step 5: Solve for x
   x = 1,571,701.04/1,377.02
6. Step 6: Final answer
   x = 1,141.38