Finding the Fourth Proportional to 2,118,189.53, 3,175,498.52 and 919,208.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,189.53 : 3,175,498.52 = 919,208.63 : x
2. Step 2: Convert to fraction form
   2,118,189.53/3,175,498.52 = 919,208.63/x
3. Step 3: Cross multiply
   2,118,189.53x = 3,175,498.52 × 919,208.63
4. Step 4: Simplify right side
   2,118,189.53x = 2,918,945,639,540.18
5. Step 5: Solve for x
   x = 2,918,945,639,540.18/2,118,189.53
6. Step 6: Final answer
   x = 1,378,037.99