Finding the Fourth Proportional to 1,905,401.69, 2,629,386.30 and 1,078,457.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905,401.69 : 2,629,386.30 = 1,078,457.51 : x
2. Step 2: Convert to fraction form
   1,905,401.69/2,629,386.30 = 1,078,457.51/x
3. Step 3: Cross multiply
   1,905,401.69x = 2,629,386.30 × 1,078,457.51
4. Step 4: Simplify right side
   1,905,401.69x = 2,835,681,392,823.40
5. Step 5: Solve for x
   x = 2,835,681,392,823.40/1,905,401.69
6. Step 6: Final answer
   x = 1,488,232.85