Finding the Fourth Proportional to 2,154,914.25, 2,973,802.29 and 1,188,079.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,914.25 : 2,973,802.29 = 1,188,079.20 : x
2. Step 2: Convert to fraction form
   2,154,914.25/2,973,802.29 = 1,188,079.20/x
3. Step 3: Cross multiply
   2,154,914.25x = 2,973,802.29 × 1,188,079.20
4. Step 4: Simplify right side
   2,154,914.25x = 3,533,112,645,661.37
5. Step 5: Solve for x
   x = 3,533,112,645,661.37/2,154,914.25
6. Step 6: Final answer
   x = 1,639,560.67