Finding the Fourth Proportional to 1,580,552, 2,181,196.32 and 865,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580,552 : 2,181,196.32 = 865,160 : x
2. Step 2: Convert to fraction form
   1,580,552/2,181,196.32 = 865,160/x
3. Step 3: Cross multiply
   1,580,552x = 2,181,196.32 × 865,160
4. Step 4: Simplify right side
   1,580,552x = 1,887,083,808,211.20
5. Step 5: Solve for x
   x = 1,887,083,808,211.20/1,580,552
6. Step 6: Final answer
   x = 1,193,939.72