Finding the Fourth Proportional to 1,345,404.39, 1,864,672.55 and 1,320,210.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,404.39 : 1,864,672.55 = 1,320,210.15 : x
2. Step 2: Convert to fraction form
   1,345,404.39/1,864,672.55 = 1,320,210.15/x
3. Step 3: Cross multiply
   1,345,404.39x = 1,864,672.55 × 1,320,210.15
4. Step 4: Simplify right side
   1,345,404.39x = 2,461,759,626,936.38
5. Step 5: Solve for x
   x = 2,461,759,626,936.38/1,345,404.39
6. Step 6: Final answer
   x = 1,829,754.42