Finding the Fourth Proportional to 1,665,238.93, 2,298,085.37 and 1,020,534.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,238.93 : 2,298,085.37 = 1,020,534.55 : x
2. Step 2: Convert to fraction form
   1,665,238.93/2,298,085.37 = 1,020,534.55/x
3. Step 3: Cross multiply
   1,665,238.93x = 2,298,085.37 × 1,020,534.55
4. Step 4: Simplify right side
   1,665,238.93x = 2,345,275,518,934.53
5. Step 5: Solve for x
   x = 2,345,275,518,934.53/1,665,238.93
6. Step 6: Final answer
   x = 1,408,371.78