Finding the Fourth Proportional to 2,158,394.07, 2,978,607.96 and 1,191,524.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,394.07 : 2,978,607.96 = 1,191,524.88 : x
2. Step 2: Convert to fraction form
   2,158,394.07/2,978,607.96 = 1,191,524.88/x
3. Step 3: Cross multiply
   2,158,394.07x = 2,978,607.96 × 1,191,524.88
4. Step 4: Simplify right side
   2,158,394.07x = 3,549,085,492,106.04
5. Step 5: Solve for x
   x = 3,549,085,492,106.04/2,158,394.07
6. Step 6: Final answer
   x = 1,644,317.66