Finding the Fourth Proportional to 1,580,547, 2,181,189.42 and 865,155

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580,547 : 2,181,189.42 = 865,155 : x
2. Step 2: Convert to fraction form
   1,580,547/2,181,189.42 = 865,155/x
3. Step 3: Cross multiply
   1,580,547x = 2,181,189.42 × 865,155
4. Step 4: Simplify right side
   1,580,547x = 1,887,066,932,660.10
5. Step 5: Solve for x
   x = 1,887,066,932,660.10/1,580,547
6. Step 6: Final answer
   x = 1,193,932.82