Finding the Fourth Proportional to 978,404.10, 1,467,606.15 and 901,421.70

Step by Step Solution

1. Step 1: Write the proportion equation
   978,404.10 : 1,467,606.15 = 901,421.70 : x
2. Step 2: Convert to fraction form
   978,404.10/1,467,606.15 = 901,421.70/x
3. Step 3: Cross multiply
   978,404.10x = 1,467,606.15 × 901,421.70
4. Step 4: Simplify right side
   978,404.10x = 1,322,932,030,663.45
5. Step 5: Solve for x
   x = 1,322,932,030,663.45/978,404.10
6. Step 6: Final answer
   x = 1,352,132.55