Finding the Fourth Proportional to 1,417,645.98, 2,124,063.27 and 855,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417,645.98 : 2,124,063.27 = 855,499.50 : x
2. Step 2: Convert to fraction form
   1,417,645.98/2,124,063.27 = 855,499.50/x
3. Step 3: Cross multiply
   1,417,645.98x = 2,124,063.27 × 855,499.50
4. Step 4: Simplify right side
   1,417,645.98x = 1,817,135,065,453.37
5. Step 5: Solve for x
   x = 1,817,135,065,453.37/1,417,645.98
6. Step 6: Final answer
   x = 1,281,797.49