Finding the Fourth Proportional to 2,389,436.28, 3,582,002.27 and 872,054.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389,436.28 : 3,582,002.27 = 872,054.53 : x
2. Step 2: Convert to fraction form
   2,389,436.28/3,582,002.27 = 872,054.53/x
3. Step 3: Cross multiply
   2,389,436.28x = 3,582,002.27 × 872,054.53
4. Step 4: Simplify right side
   2,389,436.28x = 3,123,701,299,248.91
5. Step 5: Solve for x
   x = 3,123,701,299,248.91/2,389,436.28
6. Step 6: Final answer
   x = 1,307,296.34