Finding the Fourth Proportional to 2,020,585.98, 2,788,402.95 and 1,115,161.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020,585.98 : 2,788,402.95 = 1,115,161.50 : x
2. Step 2: Convert to fraction form
   2,020,585.98/2,788,402.95 = 1,115,161.50/x
3. Step 3: Cross multiply
   2,020,585.98x = 2,788,402.95 × 1,115,161.50
4. Step 4: Simplify right side
   2,020,585.98x = 3,109,519,616,326.43
5. Step 5: Solve for x
   x = 3,109,519,616,326.43/2,020,585.98
6. Step 6: Final answer
   x = 1,538,919.72