Finding the Fourth Proportional to 1,173,196.87, 1,618,175.31 and 1,076,711.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173,196.87 : 1,618,175.31 = 1,076,711.72 : x
2. Step 2: Convert to fraction form
   1,173,196.87/1,618,175.31 = 1,076,711.72/x
3. Step 3: Cross multiply
   1,173,196.87x = 1,618,175.31 × 1,076,711.72
4. Step 4: Simplify right side
   1,173,196.87x = 1,742,308,321,291.63
5. Step 5: Solve for x
   x = 1,742,308,321,291.63/1,173,196.87
6. Step 6: Final answer
   x = 1,485,094.59