Finding the Fourth Proportional to 2,139,185.77, 2,952,099.57 and 1,172,295.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,185.77 : 2,952,099.57 = 1,172,295.25 : x
2. Step 2: Convert to fraction form
   2,139,185.77/2,952,099.57 = 1,172,295.25/x
3. Step 3: Cross multiply
   2,139,185.77x = 2,952,099.57 × 1,172,295.25
4. Step 4: Simplify right side
   2,139,185.77x = 3,460,732,303,438.04
5. Step 5: Solve for x
   x = 3,460,732,303,438.04/2,139,185.77
6. Step 6: Final answer
   x = 1,617,780.16