Finding the Fourth Proportional to 1,947,300.39, 2,918,339.59 and 1,515,539.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947,300.39 : 2,918,339.59 = 1,515,539.18 : x
2. Step 2: Convert to fraction form
   1,947,300.39/2,918,339.59 = 1,515,539.18/x
3. Step 3: Cross multiply
   1,947,300.39x = 2,918,339.59 × 1,515,539.18
4. Step 4: Simplify right side
   1,947,300.39x = 4,422,857,974,598.44
5. Step 5: Solve for x
   x = 4,422,857,974,598.44/1,947,300.39
6. Step 6: Final answer
   x = 2,271,276.69