Finding the Fourth Proportional to 2,158,003.47, 2,978,045.05 and 1,191,134.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,003.47 : 2,978,045.05 = 1,191,134.01 : x
2. Step 2: Convert to fraction form
   2,158,003.47/2,978,045.05 = 1,191,134.01/x
3. Step 3: Cross multiply
   2,158,003.47x = 2,978,045.05 × 1,191,134.01
4. Step 4: Simplify right side
   2,158,003.47x = 3,547,250,742,367.15
5. Step 5: Solve for x
   x = 3,547,250,742,367.15/2,158,003.47
6. Step 6: Final answer
   x = 1,643,765.08