Finding the Fourth Proportional to 2,645,362.81, 3,967,851.50 and 1,186,860.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,362.81 : 3,967,851.50 = 1,186,860.87 : x
2. Step 2: Convert to fraction form
   2,645,362.81/3,967,851.50 = 1,186,860.87/x
3. Step 3: Cross multiply
   2,645,362.81x = 3,967,851.50 × 1,186,860.87
4. Step 4: Simplify right side
   2,645,362.81x = 4,709,287,677,386.50
5. Step 5: Solve for x
   x = 4,709,287,677,386.50/2,645,362.81
6. Step 6: Final answer
   x = 1,780,204.84