Finding the Fourth Proportional to 2,154,443.64, 2,973,131.46 and 1,187,590.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,443.64 : 2,973,131.46 = 1,187,590.02 : x
2. Step 2: Convert to fraction form
   2,154,443.64/2,973,131.46 = 1,187,590.02/x
3. Step 3: Cross multiply
   2,154,443.64x = 2,973,131.46 × 1,187,590.02
4. Step 4: Simplify right side
   2,154,443.64x = 3,530,861,250,044.03
5. Step 5: Solve for x
   x = 3,530,861,250,044.03/2,154,443.64
6. Step 6: Final answer
   x = 1,638,873.81