Finding the Fourth Proportional to 1,581,556.47, 2,182,558.38 and 856,404.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581,556.47 : 2,182,558.38 = 856,404.15 : x
2. Step 2: Convert to fraction form
   1,581,556.47/2,182,558.38 = 856,404.15/x
3. Step 3: Cross multiply
   1,581,556.47x = 2,182,558.38 × 856,404.15
4. Step 4: Simplify right side
   1,581,556.47x = 1,869,152,039,054.46
5. Step 5: Solve for x
   x = 1,869,152,039,054.46/1,581,556.47
6. Step 6: Final answer
   x = 1,181,843.38