Finding the Fourth Proportional to 2,172,109.62, 2,997,531.96 and 1,205,329.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,109.62 : 2,997,531.96 = 1,205,329.88 : x
2. Step 2: Convert to fraction form
   2,172,109.62/2,997,531.96 = 1,205,329.88/x
3. Step 3: Cross multiply
   2,172,109.62x = 2,997,531.96 × 1,205,329.88
4. Step 4: Simplify right side
   2,172,109.62x = 3,613,014,837,642.96
5. Step 5: Solve for x
   x = 3,613,014,837,642.96/2,172,109.62
6. Step 6: Final answer
   x = 1,663,366.71