Finding the Fourth Proportional to 2,158,401.09, 2,978,603.01 and 1,191,539.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,401.09 : 2,978,603.01 = 1,191,539.32 : x
2. Step 2: Convert to fraction form
   2,158,401.09/2,978,603.01 = 1,191,539.32/x
3. Step 3: Cross multiply
   2,158,401.09x = 2,978,603.01 × 1,191,539.32
4. Step 4: Simplify right side
   2,158,401.09x = 3,549,122,605,085.35
5. Step 5: Solve for x
   x = 3,549,122,605,085.35/2,158,401.09
6. Step 6: Final answer
   x = 1,644,329.51