Finding the Fourth Proportional to 2,187,587.36, 3,018,870.61 and 1,207,526.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187,587.36 : 3,018,870.61 = 1,207,526.59 : x
2. Step 2: Convert to fraction form
   2,187,587.36/3,018,870.61 = 1,207,526.59/x
3. Step 3: Cross multiply
   2,187,587.36x = 3,018,870.61 × 1,207,526.59
4. Step 4: Simplify right side
   2,187,587.36x = 3,645,366,540,891.63
5. Step 5: Solve for x
   x = 3,645,366,540,891.63/2,187,587.36
6. Step 6: Final answer
   x = 1,666,386.73