Finding the Fourth Proportional to 2,139,410.39, 2,952,409.43 and 1,172,519.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,410.39 : 2,952,409.43 = 1,172,519.87 : x
2. Step 2: Convert to fraction form
   2,139,410.39/2,952,409.43 = 1,172,519.87/x
3. Step 3: Cross multiply
   2,139,410.39x = 2,952,409.43 × 1,172,519.87
4. Step 4: Simplify right side
   2,139,410.39x = 3,461,758,709,219.63
5. Step 5: Solve for x
   x = 3,461,758,709,219.63/2,139,410.39
6. Step 6: Final answer
   x = 1,618,090.07