Finding the Fourth Proportional to 1,012,315.55, 1,515,345.91 and 555,764.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,315.55 : 1,515,345.91 = 555,764.72 : x
2. Step 2: Convert to fraction form
   1,012,315.55/1,515,345.91 = 555,764.72/x
3. Step 3: Cross multiply
   1,012,315.55x = 1,515,345.91 × 555,764.72
4. Step 4: Simplify right side
   1,012,315.55x = 842,175,797,773.25
5. Step 5: Solve for x
   x = 842,175,797,773.25/1,012,315.55
6. Step 6: Final answer
   x = 831,930.12