Finding the Fourth Proportional to 1,556,417.50, 2,147,856.15 and 877,354

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556,417.50 : 2,147,856.15 = 877,354 : x
2. Step 2: Convert to fraction form
   1,556,417.50/2,147,856.15 = 877,354/x
3. Step 3: Cross multiply
   1,556,417.50x = 2,147,856.15 × 877,354
4. Step 4: Simplify right side
   1,556,417.50x = 1,884,430,184,627.10
5. Step 5: Solve for x
   x = 1,884,430,184,627.10/1,556,417.50
6. Step 6: Final answer
   x = 1,210,748.52