Finding the Fourth Proportional to 2,152,581.91, 2,970,563.03 and 1,185,709.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152,581.91 : 2,970,563.03 = 1,185,709.21 : x
2. Step 2: Convert to fraction form
   2,152,581.91/2,970,563.03 = 1,185,709.21/x
3. Step 3: Cross multiply
   2,152,581.91x = 2,970,563.03 × 1,185,709.21
4. Step 4: Simplify right side
   2,152,581.91x = 3,522,223,943,556.51
5. Step 5: Solve for x
   x = 3,522,223,943,556.51/2,152,581.91
6. Step 6: Final answer
   x = 1,636,278.71