Finding the Fourth Proportional to 2,117,250.72, 3,174,090.84 and 918,270

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117,250.72 : 3,174,090.84 = 918,270 : x
2. Step 2: Convert to fraction form
   2,117,250.72/3,174,090.84 = 918,270/x
3. Step 3: Cross multiply
   2,117,250.72x = 3,174,090.84 × 918,270
4. Step 4: Simplify right side
   2,117,250.72x = 2,914,672,395,646.80
5. Step 5: Solve for x
   x = 2,914,672,395,646.80/2,117,250.72
6. Step 6: Final answer
   x = 1,376,630.73