Finding the Fourth Proportional to 1,499,500.42, 2,069,259.11 and 855,128.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,500.42 : 2,069,259.11 = 855,128.00 : x
2. Step 2: Convert to fraction form
   1,499,500.42/2,069,259.11 = 855,128.00/x
3. Step 3: Cross multiply
   1,499,500.42x = 2,069,259.11 × 855,128.00
4. Step 4: Simplify right side
   1,499,500.42x = 1,769,481,408,320.32
5. Step 5: Solve for x
   x = 1,769,481,408,320.32/1,499,500.42
6. Step 6: Final answer
   x = 1,180,047.29