Finding the Fourth Proportional to 1,042,019.37, 1,560,506.38 and 721,272.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042,019.37 : 1,560,506.38 = 721,272.53 : x
2. Step 2: Convert to fraction form
   1,042,019.37/1,560,506.38 = 721,272.53/x
3. Step 3: Cross multiply
   1,042,019.37x = 1,560,506.38 × 721,272.53
4. Step 4: Simplify right side
   1,042,019.37x = 1,125,550,386,881.83
5. Step 5: Solve for x
   x = 1,125,550,386,881.83/1,042,019.37
6. Step 6: Final answer
   x = 1,080,162.63