Finding the Fourth Proportional to 2,653,071.40, 3,980,448.33 and 947,178.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,653,071.40 : 3,980,448.33 = 947,178.10 : x
2. Step 2: Convert to fraction form
   2,653,071.40/3,980,448.33 = 947,178.10/x
3. Step 3: Cross multiply
   2,653,071.40x = 3,980,448.33 × 947,178.10
4. Step 4: Simplify right side
   2,653,071.40x = 3,770,193,486,357.57
5. Step 5: Solve for x
   x = 3,770,193,486,357.57/2,653,071.40
6. Step 6: Final answer
   x = 1,421,067.48