Finding the Fourth Proportional to 2,147,095.89, 2,961,756.88 and 1,287,156.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,095.89 : 2,961,756.88 = 1,287,156.55 : x
2. Step 2: Convert to fraction form
   2,147,095.89/2,961,756.88 = 1,287,156.55/x
3. Step 3: Cross multiply
   2,147,095.89x = 2,961,756.88 × 1,287,156.55
4. Step 4: Simplify right side
   2,147,095.89x = 3,812,244,767,599.56
5. Step 5: Solve for x
   x = 3,812,244,767,599.56/2,147,095.89
6. Step 6: Final answer
   x = 1,775,535.40