Finding the Fourth Proportional to 3,380.07, 5,068.72 and 1,039.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.07 : 5,068.72 = 1,039.51 : x
2. Step 2: Convert to fraction form
   3,380.07/5,068.72 = 1,039.51/x
3. Step 3: Cross multiply
   3,380.07x = 5,068.72 × 1,039.51
4. Step 4: Simplify right side
   3,380.07x = 5,268,985.13
5. Step 5: Solve for x
   x = 5,268,985.13/3,380.07
6. Step 6: Final answer
   x = 1,558.84