Finding the Fourth Proportional to 1,501,320.42, 2,071,970.42 and 856,836.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501,320.42 : 2,071,970.42 = 856,836.90 : x
2. Step 2: Convert to fraction form
   1,501,320.42/2,071,970.42 = 856,836.90/x
3. Step 3: Cross multiply
   1,501,320.42x = 2,071,970.42 × 856,836.90
4. Step 4: Simplify right side
   1,501,320.42x = 1,775,340,707,280.31
5. Step 5: Solve for x
   x = 1,775,340,707,280.31/1,501,320.42
6. Step 6: Final answer
   x = 1,182,519.52