Finding the Fourth Proportional to 3,386.06, 5,079.03 and 1,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386.06 : 5,079.03 = 1,077.50 : x
2. Step 2: Convert to fraction form
   3,386.06/5,079.03 = 1,077.50/x
3. Step 3: Cross multiply
   3,386.06x = 5,079.03 × 1,077.50
4. Step 4: Simplify right side
   3,386.06x = 5,472,654.83
5. Step 5: Solve for x
   x = 5,472,654.83/3,386.06
6. Step 6: Final answer
   x = 1,616.23