Finding the Fourth Proportional to 978,111.10, 1,467,166.65 and 901,128.70

Step by Step Solution

1. Step 1: Write the proportion equation
   978,111.10 : 1,467,166.65 = 901,128.70 : x
2. Step 2: Convert to fraction form
   978,111.10/1,467,166.65 = 901,128.70/x
3. Step 3: Cross multiply
   978,111.10x = 1,467,166.65 × 901,128.70
4. Step 4: Simplify right side
   978,111.10x = 1,322,105,975,997.85
5. Step 5: Solve for x
   x = 1,322,105,975,997.85/978,111.10
6. Step 6: Final answer
   x = 1,351,693.05