Finding the Fourth Proportional to 1,580,492.68, 2,181,085.46 and 855,340.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580,492.68 : 2,181,085.46 = 855,340.18 : x
2. Step 2: Convert to fraction form
   1,580,492.68/2,181,085.46 = 855,340.18/x
3. Step 3: Cross multiply
   1,580,492.68x = 2,181,085.46 × 855,340.18
4. Step 4: Simplify right side
   1,580,492.68x = 1,865,570,029,951.78
5. Step 5: Solve for x
   x = 1,865,570,029,951.78/1,580,492.68
6. Step 6: Final answer
   x = 1,180,372.46