Finding the Fourth Proportional to 2,147,094.89, 2,961,755.51 and 1,287,155.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,094.89 : 2,961,755.51 = 1,287,155.55 : x
2. Step 2: Convert to fraction form
   2,147,094.89/2,961,755.51 = 1,287,155.55/x
3. Step 3: Cross multiply
   2,147,094.89x = 2,961,755.51 × 1,287,155.55
4. Step 4: Simplify right side
   2,147,094.89x = 3,812,240,036,003.80
5. Step 5: Solve for x
   x = 3,812,240,036,003.80/2,147,094.89
6. Step 6: Final answer
   x = 1,775,534.03