Finding the Fourth Proportional to 1,499,500.92, 2,069,259.80 and 855,128.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,500.92 : 2,069,259.80 = 855,128.51 : x
2. Step 2: Convert to fraction form
   1,499,500.92/2,069,259.80 = 855,128.51/x
3. Step 3: Cross multiply
   1,499,500.92x = 2,069,259.80 × 855,128.51
4. Step 4: Simplify right side
   1,499,500.92x = 1,769,483,039,230.60
5. Step 5: Solve for x
   x = 1,769,483,039,230.60/1,499,500.92
6. Step 6: Final answer
   x = 1,180,047.99