Finding the Fourth Proportional to 1,499,336, 2,249,006.16 and 612,872

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,336 : 2,249,006.16 = 612,872 : x
2. Step 2: Convert to fraction form
   1,499,336/2,249,006.16 = 612,872/x
3. Step 3: Cross multiply
   1,499,336x = 2,249,006.16 × 612,872
4. Step 4: Simplify right side
   1,499,336x = 1,378,352,903,291.52
5. Step 5: Solve for x
   x = 1,378,352,903,291.52/1,499,336
6. Step 6: Final answer
   x = 919,308.88