Finding the Fourth Proportional to 2,147,097.89, 2,961,759.65 and 1,287,158.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,097.89 : 2,961,759.65 = 1,287,158.55 : x
2. Step 2: Convert to fraction form
   2,147,097.89/2,961,759.65 = 1,287,158.55/x
3. Step 3: Cross multiply
   2,147,097.89x = 2,961,759.65 × 1,287,158.55
4. Step 4: Simplify right side
   2,147,097.89x = 3,812,254,250,106.72
5. Step 5: Solve for x
   x = 3,812,254,250,106.72/2,147,097.89
6. Step 6: Final answer
   x = 1,775,538.17